CS is "hard". It is like learning a science, language or math. Yes you can get a crash course in it like learning a language from an audio book, but the skilled people usually have had years of exposure and (Self) instruction. You won't leave learning mathematics to the last year of high school as preparation for a Degree in the subject.
I would argue the mental challenges and understanding to "get" programming is just as large as calculus. My experience of UK school and degree level programming courses is that since programming wasn't a core course throughout school (age 5+) it was only the self taught computer programming enthusiasts ("nerds") who stood a chance of scoring highly on high school or degree level programming courses. This became very evident at (Physics Degree) level where I participated as a student and later as a TA on the computational physics compulsory core courses. You had people with little/no previous experience who struggled to grasp the concept of variables, arrays, IF statement, and FOR loops and the other extreme with people who could complement the course work in 50% of the allotted time and were using operator overloads and pointers with free abandon.
Solutions: Teach computer programming as a core course throughout school. Just like English (writing) use it as a "tool" in every subject, such as MATH, Science. Bring back home computers with BASIC (or any other language) as the turn on prompt to stimulate curiosity and accessibility form an early age (bundle a quick basic with windows would be a great start).
Doesn't matter so much any more. ~99% of active (in use) android devices run v2.3 or above and so get the latest version of Google play services, updated every few weeks (not once a year). Google seems to be pointing developers to target the play services API's in place of newer OS level API's.
Not always, gas and desil cars have had problems over the years requiring multi-viscosity oils (W winter rating), additives to diesel to prevent gelling, batteries with cold crank amp ratings and engine block heaters. Many decades of R+D has help iron out the issues with gas and diesel cars in very cold weather and yet people still have cold morning start issues when the car is no longer in top condition.
you could argue instead that with a hundred years of issues we should have stuck with the horse.....
Without Google certification and play services it will be an uphill battle for traction with a reduced pool of compatible apps. Even amazon has to work hard to make APIs that duplicate googles closed source ones.
The only thing I can think / guess is that some patent, licence and/or DRM limitation was identified by AMD that restricts (in legal terms) audio over DVI, but allows it over HDMI. Again, my best guess at this time.
Agreed. I started programming with BBC Basic on an 8bit home computer (UK). The initial motivation was to copy the "free" game listing out of a magazine to get my own game, then start poking around the program to make the game more interesting or do something "cool"/personalized.
Then the progression was moving to Basic on The Archimedes range of ARM workstations (UK) and writing desktop programs, defiantly fun to make your own desktop program back in the day with lots of "wow" factor.
Progressing to PC's and using early visual basic was the same.
Then came Labview which was a big switch from traditional line based code programming but gave it's own rewards when you started interfacing (easily) to machines and instruments, e.g. I/O to oscilloscopes, lasers, power supplies etc. to quickly construct a fully automated experiment was then the wow factor.
I had resisted programming in C and similar languages because the strict syntax and structuring requirements were a big road block to (initial) quick and functional programs. However that changed in recent years when cheap micro processors eval boards such as the TI launch pad came with C++ environments. The pay off for learning C++ was to have my own custom microprocessor firmware and electronics working as I wanted. This is where audrino has the big attraction due to the simple programming environment.
I would suggest that these days controlling a microprocessors board with I/O to physical devices and writing "apps" for cell phones is the big pay off in wow/interest for new programmers.
I can only assume you had an exam board that didn't mandate a programming based project. Try goggling a few such as WJEC GCSE and you will see a programming project is core. For A level I had to write two pieces of software IIRC for core projects.
I don't recall programming at my UK schools as part of core/compulsory curriculum in the 1980's and 1990's. However those who elect to study GCSE and/or A level computer science in middle/high school were required to learn programming as part of the 2 year course and programming project(s) had to be turned in that accounted considerably to the final mark.
A quick Google gives that present GSCE computer programming project is 30% of final mark.
I taught myself programming at home aged ~8 an onward. I took GCSE and A-level computer science at night school, at an earlier than normal age, and in addition to my high-school courses. When I reached (UK) college Physics there was compulsory programming courses and people without skills had to play catch up.
I do a fair amount of home and work microprocessor/hardware dev. and every time I research I keep coming to the conclusion that the Arduino and it's expansion shields from the usual vendors are WAY OVERPRICED.
An Arduino and Ethernet shield costs more than a 2nd hand dual core PC box with windows licence.
The RasberyPI by comparison seems very well priced, though I haven't had need for one. The OP is correct, if he needs a screen , user input and portable nature a (2nd hand) cell phone (android) is a good basis. Since the USB OTG IO expansion costs as much as a budget (2nd hand) android cell phone again it is not a great deal.
I would suggest a TI Stelaris launchpad kit that has USB host / slave functionality for $13 (!) http://www.ti.com/ww/en/launchpad/stellaris_head.html?DCMP=stellaris-launchpad&HQS=stellaris-launchpad
this little guy has "80MHz, 32-bit ARM Cortex-M4 CPU with floating point, 256Kbytes of 100,000 write-erase cycle FLASH and many peripherals such as 1MSPS ADCs, eight UARTs, four SPIs, four I2Cs, USB & up to 27 timers, some configurable up to 64-bits. "
For all most of my (PC based) projects to date I have gone with:
A) the (cheaper) MSP430 launchpad: http://www.ti.com/tool/msp-exp430g2
B) Or for "medium" speed / quality analog I/O use a national instruments usb I/O card ($170):
http://sine.ni.com/nips/cds/view/p/lang/en/nid/201986
C) And for something a bit faster use a Rigol Osc. starting at $300 with usb and Ethernet interfacing.
SPECfp2006 rate results:
e8600 34
i7-3770 130
x4 the performance
...sell the E8xxx series PC's in boxes for$100 a peice with windows licence
and use the $1400 towards buying Qty.4 lga1155 motherboards (4x$80), 4 unlocked K series i7's (4x$230) and 4x8Gb of DDR3 RAM (4x$40), 4x ~3-400W budget power supplies (4x $30) = $1520
Use a specialized clustering OS (linux) and have a smaller, easier to manage system, with lots more DDR 3 memory and lower electricity (and AC electricity) bill....
What is going to happen when this binary pair of brown dwarfs ultimately merge?
Will the combined mass be enough to start fusion and a main sequence star?
Will it have a period of instability resulting in high energy particle or "solar flare" emissions that could have implications to our solar system?
FRIDAY, MARCH 1, 2013
1736 GMT (12:36 p.m. EST)
A NASA official says three Dragon thruster pods are required to approach the International Space Station.
FRIDAY, MARCH 1, 2013
1726 GMT (12:26 p.m. EST)
The Dragon spacecraft's Draco thrusters are mounted on four pods. Two of the pods contain five thrusters and the other two contain four thrusters.
According to SpaceX, the pods are positioned to provide complete control of the spacecraft's direction of motion (X, Y and Z axis), as well as orientation (roll, pitch and yaw).
FRIDAY, MARCH 1, 2013
1710 GMT (12:10 p.m. EST)
SpaceX has released the following statement:
"Falcon 9 lifted off as planned and experienced a nominal flight. After Dragon achieved orbit, the spacecraft experienced an issue with a propellant valve. One thruster pod is running. We are trying to bring up the remaining three. We did go ahead and get the solar arrays deployed. Once we get at least 2 pods running, we will begin a series of burns to get to station."
FRIDAY, MARCH 1, 2013
1702 GMT (12:02 p.m. EST)
Engineers are working to bring up the two other Dragon thruster pods (Nos. 2 and 4).
FRIDAY, MARCH 1, 2013
1650 GMT (11:50 a.m. EST)
Dragon has extended its power-generating solar panels.
FRIDAY, MARCH 1, 2013
1640 GMT (11:40 a.m. EST)
"Thruster pod 3 tank pressure trending positive. Preparing to deploy solar arrays," Musk just tweeted.
At least two thruster pods are needed to deploy the power-generating solar arrays, which stretch 54 feet tip-to-tip.
FRIDAY, MARCH 1, 2013
1622 GMT (11:22 a.m. EST)
SpaceX says one thruster pod is working, and two are "preferred" to deploy solar arrays. Four thruster pods are on the Dragon spacecraft.
"We are working to bring up the other two in order to plan the next series of burns to get to station," a SpaceX spokesperson says.
FRIDAY, MARCH 1, 2013
1612 GMT (11:12 a.m. EST)
NASA spokesperson Pat Ryan says flight controllers in Houston and at SpaceX's headquarters in California are studying whether they may need to change the sequence of rendezvous burns to approach the space station.
"It is a possibility that part of the response to the issue may be a rearrangement of the planned burn sequences for the Dragon spacecraft," Ryan said in a televised update from mission control in Houston.
Meanwhile, Elon Musk is tweeting updates on the situation. His latest update: "About to pass over Australia ground station and command inhibit override."
Musk is referring to an attempt to recover at least one of the three disabled thruster pods.
Dragon uses 18 Draco rocket jets to control its orientation and change its orbit to approach the space station.
FRIDAY, MARCH 1, 2013
1606 GMT (11:03 a.m. EST)
"Holding on solar array deployment until at least two thruster pods are active," Musk just tweeted.
FRIDAY, MARCH 1, 2013
1543 GMT (10:43 a.m. EST)
SpaceX founder and CEO just tweeted: "Issue with Dragon thruster pods. System inhibiting three of four from initializing. About to command inhibit override."
Solar array deployment was delayed while engineers attempt to regain attitude control of Dragon.
from "Spaceflight Now"
FRIDAY, MARCH 1, 2013
1527 GMT (10:27 a.m. EST)
"It appears that although it achieved Earth orbit, Dragon is experiencing some kind problem right now," said John Insprucker, SpaceX's Falcon 9 product manager. We'lll have to learn about the nature of what happened. According to procedure, we expect a press conference to be held a few hours from now. At that time, further info may be available."
FRIDAY, MARCH 1, 2013
1524 GMT (10:24 a.m. EST)
ANOMALY. SpaceX is reporting some type of anomaly on the Dragon spacecraft. Deployment of the solar arrays was supposed to occur at T+plus 11 minutes, 45 seconds, but on-board cameras did not show the panels unfurl as planned.
SpaceX's webcast cut away from the solar array view and went to a slate.
FRIDAY, MARCH 1, 2013
1520 GMT (10:20 a.m. EST)
T+plus 10 minutes, 10 seconds. Dragon has separated from the Falcon 9 upper stage.
Some suggestions:
I recently demoed some Rigol Osc. and signal generators. USB (all models) [and Ethernet on most] [and serial on some] ideal for computer hookup. Their specs/features/performance:price ratio is much better than anything else I have come across. They also make RFSA, digital multimeters, DC sources etc. Prices on their (USA) web site.
Also, get LabView.
$50 a month for 30/4 mbit/s cable without cap (charter)
$22 a month for netflix streaming + 2 blurays at a time
$0 for all the major networks in HD (OTA) with streaming to all PC's in the house and show recording/playback via PC (sunk cost) (one time fee $100 for HDhome run)
$0 for HULU, Comedy Central etc. via web sites
$0 for local and long distance telephone (Google talk.voice via a Obi box) ($50 one time hardware fee).
$124 a month (inc taxes and fees) for 4 cell phones on T-mobile (3 with unlimited data (2gb then throttled) , text, calls / 1 with 500 minutes and unlimited texts)
+ $17 a month for a new Google nexus phones every 2 years.
I am a moderate to heaver android cell phone user.
I'm 9 month use into the factory supplied battery (1550 mAh) on my android phone (HTC sensation) and in the last week realized it was seriously failing, getting about ~2hours of moderate use before Last week I switched over a cheap ebay one that I got several months ago as an emergency spare, that is supposed to be the same capacity, but I know is a cheap knock off and only ~1200 mAh. This one was now lasting longer.
Today I am on a new, good brand name, reliable vendor battery (claimed 1900mAh, same physical size as the factory one) and I am 6 hours in (without any top up charge) and only at 60% capacity.
So check you battery, especially if over 6 months old if you are a heavy user, they don't last for ever.
I've been using it for a few months and it has proven very reliable and useful. You can use it for free with a few unobtrusive ads in the UI. Thier business strategy seems to be to sell you storage space on their servers, but you don't need to pay a dime to use your own or your friends hard drive space.
You can set up all your pc's to backup to each other or certain locations (PC in your group/ Friends PC/External drive/local file folder) and configure what get's automatically backed up. You can give out "referral keys" to your friends so they can store on your computer(s) and vica versa, however you can't see their files because you don't have their password.
Using this setup I have all my PC's backed up to my server. All my critical documents and family photos backed up off site to a friends PC and also to an external drive that spends 99% of it's time in a fire safe. I have also got my family in different towns and countries backed up to me.
It also does journaling so you can recover an older version of a file.
So choose a well trusted friend or family member and use crash plan to arrange your off site backups.
I gave up on Brinks and re-purposed their security system.
Hint: unplug the brinks box from the phone line before you cancel their service incase they brick it on the next auto dial home.
Even with no service the keypads, sensors and sirens still work. And the "protected by brinks" signs still deter.
I wired some TI Launch Pads (or any cheap microprocessors board will do) into the control box in parallel with the motion and window sensor signal wires and the siren terminals, using suitable resistor dividers to allow monitoring. The TI boards are then polled for status 24-7 from the server a few feet away and i get email alerts with recent event log files if siren goes off so I can work out if it is pet's or something worth worrying about.
Some cool additional features additional features are :
ping the (static router assigned) IP address of the dwellers cell phones ( wifi) to see who is home and/or scan for bluetooth MAC addresses in range.
Monitor basement temperature to warn if there is risk of freezing pipes if away on vacation.
Make a simple flood sensor and attach that the microprocessor board to get alerts if the boiler or pipes spring a leak.
Capture from network or USB webcams
I hope some of these recalled MB's become available at bargain basement prices. I'd happily buy one and use a PCIe SATA card if it could save me ~75% compared to the present MSRP.
At home I use desktops and my family photo and video collection are backed up across 3 hard drives (in 2 different PC's) ~daily via a scheduled back-up script.
I have just archived everything to date to BD-R. Something I intend to update every 6-12 months. I also intend to leave a second copy set with a relative in case of fire.
When travelling with laptop I keep wherever possible all video/photos on thier SD/CF cards from camcorder/camera and back up nightly to laptop HD
Is this unattended (torrent) activity? I find it hard to believe that it is active web surfing / video streaming for the majority, unless daytime usage is extremely low and what we are seeing is that the network is completely overwhelmed with modest/typical use by 2nd/3rd shift shift workers.
Slashdot Mirror
Then look in the sales numbers for replacement appliances and computer pars form bestbuy, newegg etc.
CS is "hard". It is like learning a science, language or math. Yes you can get a crash course in it like learning a language from an audio book, but the skilled people usually have had years of exposure and (Self) instruction. You won't leave learning mathematics to the last year of high school as preparation for a Degree in the subject.
I would argue the mental challenges and understanding to "get" programming is just as large as calculus.
My experience of UK school and degree level programming courses is that since programming wasn't a core course throughout school (age 5+) it was only the self taught computer programming enthusiasts ("nerds") who stood a chance of scoring highly on high school or degree level programming courses. This became very evident at (Physics Degree) level where I participated as a student and later as a TA on the computational physics compulsory core courses. You had people with little/no previous experience who struggled to grasp the concept of variables, arrays, IF statement, and FOR loops and the other extreme with people who could complement the course work in 50% of the allotted time and were using operator overloads and pointers with free abandon.
Solutions: Teach computer programming as a core course throughout school. Just like English (writing) use it as a "tool" in every subject, such as MATH, Science. Bring back home computers with BASIC (or any other language) as the turn on prompt to stimulate curiosity and accessibility form an early age (bundle a quick basic with windows would be a great start).
Doesn't matter so much any more. ~99% of active (in use) android devices run v2.3 or above and so get the latest version of Google play services, updated every few weeks (not once a year). Google seems to be pointing developers to target the play services API's in place of newer OS level API's.
Easy, change the road signs over to captcha problems making it difficult for driver less cars to determine the speed limit or road instructions.
Not always, gas and desil cars have had problems over the years requiring multi-viscosity oils (W winter rating), additives to diesel to prevent gelling, batteries with cold crank amp ratings and engine block heaters. Many decades of R+D has help iron out the issues with gas and diesel cars in very cold weather and yet people still have cold morning start issues when the car is no longer in top condition. you could argue instead that with a hundred years of issues we should have stuck with the horse.....
Without Google certification and play services it will be an uphill battle for traction with a reduced pool of compatible apps. Even amazon has to work hard to make APIs that duplicate googles closed source ones.
I'm also struggling to see a reason for this.
The only thing I can think / guess is that some patent, licence and/or DRM limitation was identified by AMD that restricts (in legal terms) audio over DVI, but allows it over HDMI. Again, my best guess at this time.
Agreed. I started programming with BBC Basic on an 8bit home computer (UK). The initial motivation was to copy the "free" game listing out of a magazine to get my own game, then start poking around the program to make the game more interesting or do something "cool"/personalized.
Then the progression was moving to Basic on The Archimedes range of ARM workstations (UK) and writing desktop programs, defiantly fun to make your own desktop program back in the day with lots of "wow" factor.
Progressing to PC's and using early visual basic was the same.
Then came Labview which was a big switch from traditional line based code programming but gave it's own rewards when you started interfacing (easily) to machines and instruments, e.g. I/O to oscilloscopes, lasers, power supplies etc. to quickly construct a fully automated experiment was then the wow factor. I had resisted programming in C and similar languages because the strict syntax and structuring requirements were a big road block to (initial) quick and functional programs. However that changed in recent years when cheap micro processors eval boards such as the TI launch pad came with C++ environments. The pay off for learning C++ was to have my own custom microprocessor firmware and electronics working as I wanted. This is where audrino has the big attraction due to the simple programming environment.
I would suggest that these days controlling a microprocessors board with I/O to physical devices and writing "apps" for cell phones is the big pay off in wow/interest for new programmers.
I can only assume you had an exam board that didn't mandate a programming based project. Try goggling a few such as WJEC GCSE and you will see a programming project is core. For A level I had to write two pieces of software IIRC for core projects.
I don't recall programming at my UK schools as part of core/compulsory curriculum in the 1980's and 1990's. However those who elect to study GCSE and/or A level computer science in middle/high school were required to learn programming as part of the 2 year course and programming project(s) had to be turned in that accounted considerably to the final mark.
A quick Google gives that present GSCE computer programming project is 30% of final mark.
I taught myself programming at home aged ~8 an onward. I took GCSE and A-level computer science at night school, at an earlier than normal age, and in addition to my high-school courses. When I reached (UK) college Physics there was compulsory programming courses and people without skills had to play catch up.
I do a fair amount of home and work microprocessor/hardware dev. and every time I research I keep coming to the conclusion that the Arduino and it's expansion shields from the usual vendors are WAY OVERPRICED.
An Arduino and Ethernet shield costs more than a 2nd hand dual core PC box with windows licence.
The RasberyPI by comparison seems very well priced, though I haven't had need for one. The OP is correct, if he needs a screen , user input and portable nature a (2nd hand) cell phone (android) is a good basis. Since the USB OTG IO expansion costs as much as a budget (2nd hand) android cell phone again it is not a great deal.
I would suggest a TI Stelaris launchpad kit that has USB host / slave functionality for $13 (!)
http://www.ti.com/ww/en/launchpad/stellaris_head.html?DCMP=stellaris-launchpad&HQS=stellaris-launchpad
this little guy has "80MHz, 32-bit ARM Cortex-M4 CPU with floating point, 256Kbytes of 100,000 write-erase cycle FLASH and many peripherals such as 1MSPS ADCs, eight UARTs, four SPIs, four I2Cs, USB & up to 27 timers, some configurable up to 64-bits. "
Another item of interest for projects that I have developed is this Bluetooth to serial TTL for $9:
http://www.mdfly.com/index.php?main_page=product_info&products_id=63
For all most of my (PC based) projects to date I have gone with:
A) the (cheaper) MSP430 launchpad:
http://www.ti.com/tool/msp-exp430g2
B) Or for "medium" speed / quality analog I/O use a national instruments usb I/O card ($170): http://sine.ni.com/nips/cds/view/p/lang/en/nid/201986
C) And for something a bit faster use a Rigol Osc. starting at $300 with usb and Ethernet interfacing.
SPECfp2006 rate results:
...sell the E8xxx series PC's in boxes for$100 a peice with windows licence
e8600 34
i7-3770 130
x4 the performance
and use the $1400 towards buying Qty.4 lga1155 motherboards (4x$80), 4 unlocked K series i7's (4x$230) and 4x8Gb of DDR3 RAM (4x$40), 4x ~3-400W budget power supplies (4x $30) = $1520
Use a specialized clustering OS (linux) and have a smaller, easier to manage system, with lots more DDR 3 memory and lower electricity (and AC electricity) bill....
What is going to happen when this binary pair of brown dwarfs ultimately merge?
Will the combined mass be enough to start fusion and a main sequence star?
Will it have a period of instability resulting in high energy particle or "solar flare" emissions that could have implications to our solar system?
FRIDAY, MARCH 1, 2013
1736 GMT (12:36 p.m. EST)
A NASA official says three Dragon thruster pods are required to approach the International Space Station.
FRIDAY, MARCH 1, 2013
1726 GMT (12:26 p.m. EST)
The Dragon spacecraft's Draco thrusters are mounted on four pods. Two of the pods contain five thrusters and the other two contain four thrusters. According to SpaceX, the pods are positioned to provide complete control of the spacecraft's direction of motion (X, Y and Z axis), as well as orientation (roll, pitch and yaw).
FRIDAY, MARCH 1, 2013
1710 GMT (12:10 p.m. EST)
SpaceX has released the following statement:
"Falcon 9 lifted off as planned and experienced a nominal flight. After Dragon achieved orbit, the spacecraft experienced an issue with a propellant valve. One thruster pod is running. We are trying to bring up the remaining three. We did go ahead and get the solar arrays deployed. Once we get at least 2 pods running, we will begin a series of burns to get to station."
FRIDAY, MARCH 1, 2013
1702 GMT (12:02 p.m. EST)
Engineers are working to bring up the two other Dragon thruster pods (Nos. 2 and 4).
FRIDAY, MARCH 1, 2013
1650 GMT (11:50 a.m. EST)
Dragon has extended its power-generating solar panels.
FRIDAY, MARCH 1, 2013
1640 GMT (11:40 a.m. EST)
"Thruster pod 3 tank pressure trending positive. Preparing to deploy solar arrays," Musk just tweeted. At least two thruster pods are needed to deploy the power-generating solar arrays, which stretch 54 feet tip-to-tip.
FRIDAY, MARCH 1, 2013
1622 GMT (11:22 a.m. EST)
SpaceX says one thruster pod is working, and two are "preferred" to deploy solar arrays. Four thruster pods are on the Dragon spacecraft. "We are working to bring up the other two in order to plan the next series of burns to get to station," a SpaceX spokesperson says.
FRIDAY, MARCH 1, 2013
1612 GMT (11:12 a.m. EST)
NASA spokesperson Pat Ryan says flight controllers in Houston and at SpaceX's headquarters in California are studying whether they may need to change the sequence of rendezvous burns to approach the space station. "It is a possibility that part of the response to the issue may be a rearrangement of the planned burn sequences for the Dragon spacecraft," Ryan said in a televised update from mission control in Houston.
Meanwhile, Elon Musk is tweeting updates on the situation. His latest update: "About to pass over Australia ground station and command inhibit override."
Musk is referring to an attempt to recover at least one of the three disabled thruster pods.
Dragon uses 18 Draco rocket jets to control its orientation and change its orbit to approach the space station.
FRIDAY, MARCH 1, 2013
1606 GMT (11:03 a.m. EST)
"Holding on solar array deployment until at least two thruster pods are active," Musk just tweeted.
FRIDAY, MARCH 1, 2013
1543 GMT (10:43 a.m. EST)
SpaceX founder and CEO just tweeted: "Issue with Dragon thruster pods. System inhibiting three of four from initializing. About to command inhibit override." Solar array deployment was delayed while engineers attempt to regain attitude control of Dragon.
from "Spaceflight Now"
FRIDAY, MARCH 1, 2013
1527 GMT (10:27 a.m. EST)
"It appears that although it achieved Earth orbit, Dragon is experiencing some kind problem right now," said John Insprucker, SpaceX's Falcon 9 product manager. We'lll have to learn about the nature of what happened. According to procedure, we expect a press conference to be held a few hours from now. At that time, further info may be available."
FRIDAY, MARCH 1, 2013
1524 GMT (10:24 a.m. EST)
ANOMALY. SpaceX is reporting some type of anomaly on the Dragon spacecraft. Deployment of the solar arrays was supposed to occur at T+plus 11 minutes, 45 seconds, but on-board cameras did not show the panels unfurl as planned. SpaceX's webcast cut away from the solar array view and went to a slate.
FRIDAY, MARCH 1, 2013
1520 GMT (10:20 a.m. EST)
T+plus 10 minutes, 10 seconds. Dragon has separated from the Falcon 9 upper stage.
Try researching:
Audrino, TI MSP430 Launchpad, TI Stellaris ARM Cortex-M Launchpad, Electric Imp
Some suggestions: I recently demoed some Rigol Osc. and signal generators. USB (all models) [and Ethernet on most] [and serial on some] ideal for computer hookup. Their specs/features/performance:price ratio is much better than anything else I have come across. They also make RFSA, digital multimeters, DC sources etc. Prices on their (USA) web site. Also, get LabView.
$50 a month for 30/4 mbit/s cable without cap (charter)
$22 a month for netflix streaming + 2 blurays at a time
$0 for all the major networks in HD (OTA) with streaming to all PC's in the house and show recording/playback via PC (sunk cost) (one time fee $100 for HDhome run)
$0 for HULU, Comedy Central etc. via web sites
$0 for local and long distance telephone (Google talk.voice via a Obi box) ($50 one time hardware fee).
$124 a month (inc taxes and fees) for 4 cell phones on T-mobile (3 with unlimited data (2gb then throttled) , text, calls / 1 with 500 minutes and unlimited texts)
+ $17 a month for a new Google nexus phones every 2 years.
I am a moderate to heaver android cell phone user.
I'm 9 month use into the factory supplied battery (1550 mAh) on my android phone (HTC sensation) and in the last week realized it was seriously failing, getting about ~2hours of moderate use before
Last week I switched over a cheap ebay one that I got several months ago as an emergency spare, that is supposed to be the same capacity, but I know is a cheap knock off and only ~1200 mAh. This one was now lasting longer.
Today I am on a new, good brand name, reliable vendor battery (claimed 1900mAh, same physical size as the factory one) and I am 6 hours in (without any top up charge) and only at 60% capacity.
So check you battery, especially if over 6 months old if you are a heavy user, they don't last for ever.
A previous Slashdot topic (many months ago) pointed out this program.
/External drive/local file folder) and configure what get's automatically backed up.
http://www.crashplan.com/ (Mac, windows, linux)
I've been using it for a few months and it has proven very reliable and useful. You can use it for free with a few unobtrusive ads in the UI. Thier business strategy seems to be to sell you storage space on their servers, but you don't need to pay a dime to use your own or your friends hard drive space.
You can set up all your pc's to backup to each other or certain locations (PC in your group/ Friends PC
You can give out "referral keys" to your friends so they can store on your computer(s) and vica versa, however you can't see their files because you don't have their password.
Using this setup I have all my PC's backed up to my server. All my critical documents and family photos backed up off site to a friends PC and also to an external drive that spends 99% of it's time in a fire safe. I have also got my family in different towns and countries backed up to me.
It also does journaling so you can recover an older version of a file.
So choose a well trusted friend or family member and use crash plan to arrange your off site backups.
I gave up on Brinks and re-purposed their security system.
Hint: unplug the brinks box from the phone line before you cancel their service incase they brick it on the next auto dial home.
Even with no service the keypads, sensors and sirens still work. And the "protected by brinks" signs still deter.
I wired some TI Launch Pads (or any cheap microprocessors board will do) into the control box in parallel with the motion and window sensor signal wires and the siren terminals, using suitable resistor dividers to allow monitoring. The TI boards are then polled for status 24-7 from the server a few feet away and i get email alerts with recent event log files if siren goes off so I can work out if it is pet's or something worth worrying about.
Some cool additional features additional features are :
ping the (static router assigned) IP address of the dwellers cell phones ( wifi) to see who is home and/or scan for bluetooth MAC addresses in range.
Monitor basement temperature to warn if there is risk of freezing pipes if away on vacation.
Make a simple flood sensor and attach that the microprocessor board to get alerts if the boiler or pipes spring a leak.
Capture from network or USB webcams
I hope some of these recalled MB's become available at bargain basement prices. I'd happily buy one and use a PCIe SATA card if it could save me ~75% compared to the present MSRP.
At home I use desktops and my family photo and video collection are backed up across 3 hard drives (in 2 different PC's) ~daily via a scheduled back-up script.
I have just archived everything to date to BD-R. Something I intend to update every 6-12 months. I also intend to leave a second copy set with a relative in case of fire.
When travelling with laptop I keep wherever possible all video/photos on thier SD/CF cards from camcorder/camera and back up nightly to laptop HD
Is this unattended (torrent) activity? I find it hard to believe that it is active web surfing / video streaming for the majority, unless daytime usage is extremely low and what we are seeing is that the network is completely overwhelmed with modest/typical use by 2nd/3rd shift shift workers.