My family had a shared radio and a shared phone and at one place where we lived the phone was shared by a neighbor. I built a crystal radio when I was 11 but didn't use it much. I think I was 14 when we bought a television which of course, was shared. IIRC we were able to receive 3 stations. When I 19 I bought a new-fangled transistor radio so no longer had to share the family radio but by then I was in University and not home. a few decades later, around 1996 when I was married, we bought a family computer and by 2005 or so each of us had our own computer.
It's first required to detect the apoE gene and whether there are one or two copies to provide a provisional diagnosis, I guess that's not really a problem but the article doesn't say. I would guess that when patients reach some age or perhaps at birth the genetic test would be prescribed by physicians as a matter of course. What's the normal function of the gene?
Having one copy of the apoE gene doubles and two copies multiplies by 12 the chance of contracting Alzheimer's according to the article, which implies that there are other causes of Alzheimer's and also implies that having the gene doesn't predict with any certainty that carrier will exhibit symptoms if he or she lives long enough. Never-the-less this approach appears to have great promise, probably too late to help me (I'm not yet exhibiting symptoms though despite what my detractors may allege!)
Right, I agree. I heard that the US Naval Academy stopped teaching celestial navigation for a few years but recently decided that it was a good idea in case the GPS systems went down.
As far as AIS goes if the GPS system is out or jammed there's no way to show your ship's position nor any other ship's position so that makes it useless and it's foolish not to use it in conjunction with radar.
My not so long nautical career started on merchant ships with no radar, just eyes and ears. The last time I was OOD in the US Navy (1967) the ship had essentially the same surface and air radar as late WWII ships had and Loran-C which never gave a good position when we needed it, such as Yankee Station in the Tonkin Gulf off North Vietnam.
All ships use the AIS collision avoidance system. The sending ship sends a radio signal that contains information about the ship, its position (derived from GPS), and its course and speed. The receiving ship has a receiver that displays the information from nearby vessels (and its own position and course) overlaid on a chart. Without the position derived from GPS the system collapses.
Dead reckoning can give a good approximation of where the ship is, if the navigation monuments (lighthouses, etc.) can be picked out from the buildings on the shore, especially at night with thousands of of other lights on the shoreline.
The problem isn't so much running aground as avoiding collision. Picking out running lights of a ship against the background of the shore lights can be daunting. Even then it's a guess as to the ship's course and there may be several ships that need to be watched perhaps with only the mate on watch to keep track of everything.
Read about the recent collision of the USS Fitzgerald and the MV ACX Crystal.
I learned FORTRAN 66 (or FORTRAN 4 - can't quite remember) in 1975 when I was 36 years old. The class was offered by the School of Business and run on a CDC 6500 60 bit computer. Input was punch cards ander the cycle was: punch the cards for code being really careful to keep them in order; sandwich the cards between the CDC control language cards, wrap with rubber bands and drop in an input window; after 45 minutes to a couple of hours time later start checking for output consisting of the printer output wrapped around the cards; correct errors; and repeat the cycle.
I learned quite quickly that the lab was almost empty at 10 PM so I got in the habit of doing my homework at night. I made friends with the operator and learned how to operate the machine which had 5 MB disk drives that were larger than my washing machine. IIRC it had 64 MB of memory and that 32 MB were available to the user. The printers were really, really fast and someone had wired a speaker to some part of the CPU so one could differentiate sounds and sometimes discern what tasks it was doing.
Later that semester a time sharing system was set up and I switched to using a teletype for input and then used it for class but the FORTRAN was a little different, I taught myself BASIC at that time as well.
One other thing I remembered was that most of the students, I think they were actually in the School of Business, had a really hard time 'getting it'. I used to compose my homework while the instructor was answering their questions.
Nah, according to the text of the article it's powering neither the State of Hawaii nor the Island of Hawaii but provide some of the power to Kauai which will reduce its use of oil.
Burn dinosaurs? Oh, you mean oil that's made from dinosaurs. Yeah, we all know dinosaurs trekked to dying places before they kicked off just like elephants in more modern times, Took me a minute (no coffee, yet). I get it now, Mr. Sinclair.
I missed an opportunity to learn coding in 1961 as the computer was 30 miles from campus, I had no car, and was taking semester hours of math and physics. Then I was accepted for graduate school in 1975 and decided that since my goal was to become involved with science and research I should acquire skills to handle data and signed up for FORTRAN.
FORTRAN was offered by the Business department and 'goto' was heavily used. It appeared that only two or three of us in the class of about 30 'got it' but I might have been biased since I was 10 years older than most. Debugging was a bitch. Once the code was key punched the packet of cards was placed in a container embedded in a wall; at some point the computer operator would run the packet through the CDC 6000 series main frame (60 bit words) and then the output wrapped around the card deck and put in a pick-up pile a few hours later. All this to find syntax errors! I wound up doing my coding from 9pm or so until 2am as wait times were substantially shorter. I made friends with the operator and learned how to run the main frame.
About this time a time sharing system using Teletype Model 33 ASR terminals distributed around the science building was installed so I started to use it for my FORTRAN class (slightly different than the CDC) and learned BASIC.
I was given a 6502 computer on a board designed for engineers could learn how to use the 6502 chip and I/O chips. Input was a keyboard, output a paper tape similar to a cash register tape. I learned some assembly on it but had to purchase a couple of tape decks and build an interface to save and load code in the 'Kansas City Format'. I wrote a version of Wumpas using the included BASIC in ROM and used this computer in a data structures class I took.
I did take introductory courses in Pascal and C, for instance, but was self taught in C++ and in the last 4 years Java and Dart.
I read all I could to understand what to do to conceptualize and then start to code projects. Since most the coding I've done is in support of data acquisition and converting raw data into data usable for analysis and display I find that I kind of cherry-pick topics to learn, skip others, and have spotty knowledge of some aspects of the languages I use.
Programming has mostly been a secondary task in my job descriptions. I think requiring primary school students to learn coding is about as sensible as requiring them to take calculus in order to be accepted in University for Humanities majors.
Including the 'needles' made of plant spines other sharp objects. Without this we wouldn't have been able to stitch pelts together to make clothing and clothing allowed us to live in nearly every environment.
My list also includes the knife. Early ones were made from stone, such as flint, by striking the flint with another stone shaping it into a hand held gadget with a cutting edge. It's the direct ancestor of my pocket knife. It provided a simple tool that was used to shape things such as pelts, branches, etc. Must be older than the needle.
Last, but definitely least, I'd say the fire kit which would consist of a stick of hardwood that could be made to rotate fast using the hands or a small bow onto a softer wood. Friction would create hot wood power that was used to start fires. Fire gave access to food which needed to be cooked such as roots and tubers and food which was better cooked such as meat. Our ancestors also used fire to manipulate their environment to their benefit.
Most of the gadgets in the article are not available to many or most of the earth's population but a cutting gadget, sewing gadget, and control of fire shaped provided for our species survival.
"The implantable device aims to convert neurons in the brain into electronic signals..."
As an additional benefit a short time after implantation the subjects will qualify as news release editors or professional climate change deniers (but not for long).
Wow, children will no longer die from malaria. Most will live to be adults and consumers of resources, have babies that will not die from malaria and will also...
Good thing we are so far from the carrying capacity of the earth that we will have time to address the over population problem.
The particles absorb photons over a wide band, violet through 'thermal'. Presumably the energy is dissipated as though from a black body unless it is removed by conduction. For example when illuminated by visible light they would radiate mostly in the infrared (unless the absorbed energy is removed by conduction) and would be seen to glow in infrared.
If they could be tweaked to absorb better at a wavelength that is best transmitted by human tissue and attached to an antibody that attaches to cancer cells they might be used as antennae to heat and destroy the cells.
I remember that an SF story a couple of decades ago predicted that cruise missiles and the computer technology to direct their swarming would make them inexpensive weapons of choice for some nations. Looks as if that time is upon us.
"...officials note, having this capability will force adversaries to focus on UAV swarm response." I hope that we also have some focus onUAV swarm response; the 'swarm' of Kamikaze attacks on our fleet off Okinawa in WWII inflicted great damage even though we had AA shells with proximity fuzes, early warning radar, and fighter aircraft for interception.
I don't see that Mr | Ms | Mrs Coward's comment is pertinent. I sure don't want to need to code "y = z++" in assembly, much less binary, each time I need it. Computer languages are made up of symbols that translate to several to many lines of code and come with libraries of still more abstract code and the trend of higher abstraction appears to be continuing. It's good have routines coded once that that are used many times. Productivity increases.
I suspect that the savings and utility will come with new construction where, for instance, the load carrying copper wires only go to the outlets or lights and the controls, which could control the light, socket, etc. could be wireless but their power would come a separate low voltage, low amperage, circuit this saving quite a bit of copper. The smartphone could control selected or all circuits but would not be the only control.
As an example thermostats control furnaces and air conditioners via low voltage, low amp, wires. New ones may also be controlled by a smartphone or computer.
It's probably not very cost efficient to convert existing homes in most cases.
BTW I get points when I mention that I can't go out as I need to update the firmware in my front door lock.
I didn't see anything about the control group that thought they were given shocks but were not. Did I miss that? If not the study is seriously flawed and nearly worthless.
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My family had a shared radio and a shared phone and at one place where we lived the phone was shared by a neighbor. I built a crystal radio when I was 11 but didn't use it much. I think I was 14 when we bought a television which of course, was shared. IIRC we were able to receive 3 stations. When I 19 I bought a new-fangled transistor radio so no longer had to share the family radio but by then I was in University and not home. a few decades later, around 1996 when I was married, we bought a family computer and by 2005 or so each of us had our own computer.
Yellowcake is to a special form of powdered uranium as water is to a special form of powdered hydrogen.
Awesome!
Thanks.
It's first required to detect the apoE gene and whether there are one or two copies to provide a provisional diagnosis, I guess that's not really a problem but the article doesn't say. I would guess that when patients reach some age or perhaps at birth the genetic test would be prescribed by physicians as a matter of course. What's the normal function of the gene?
Having one copy of the apoE gene doubles and two copies multiplies by 12 the chance of contracting Alzheimer's according to the article, which implies that there are other causes of Alzheimer's and also implies that having the gene doesn't predict with any certainty that carrier will exhibit symptoms if he or she lives long enough. Never-the-less this approach appears to have great promise, probably too late to help me (I'm not yet exhibiting symptoms though despite what my detractors may allege!)
If your conservative friends think you are a liberal and your liberal friends think you are a conservative you are surely a conservative.
It's the incandescent bulb of power efficiency.
The point stands though that this is incredibly wasteful
Oh, I'm certain that the fuel will be obtained from renewable resources.
Right, I agree. I heard that the US Naval Academy stopped teaching celestial navigation for a few years but recently decided that it was a good idea in case the GPS systems went down.
As far as AIS goes if the GPS system is out or jammed there's no way to show your ship's position nor any other ship's position so that makes it useless and it's foolish not to use it in conjunction with radar.
My not so long nautical career started on merchant ships with no radar, just eyes and ears. The last time I was OOD in the US Navy (1967) the ship had essentially the same surface and air radar as late WWII ships had and Loran-C which never gave a good position when we needed it, such as Yankee Station in the Tonkin Gulf off North Vietnam.
Backup is good!
All ships use the AIS collision avoidance system. The sending ship sends a radio signal that contains information about the ship, its position (derived from GPS), and its course and speed. The receiving ship has a receiver that displays the information from nearby vessels (and its own position and course) overlaid on a chart. Without the position derived from GPS the system collapses.
Dead reckoning can give a good approximation of where the ship is, if the navigation monuments (lighthouses, etc.) can be picked out from the buildings on the shore, especially at night with thousands of of other lights on the shoreline.
The problem isn't so much running aground as avoiding collision. Picking out running lights of a ship against the background of the shore lights can be daunting. Even then it's a guess as to the ship's course and there may be several ships that need to be watched perhaps with only the mate on watch to keep track of everything.
Read about the recent collision of the USS Fitzgerald and the MV ACX Crystal.
I learned FORTRAN 66 (or FORTRAN 4 - can't quite remember) in 1975 when I was 36 years old. The class was offered by the School of Business and run on a CDC 6500 60 bit computer. Input was punch cards ander the cycle was: punch the cards for code being really careful to keep them in order; sandwich the cards between the CDC control language cards, wrap with rubber bands and drop in an input window; after 45 minutes to a couple of hours time later start checking for output consisting of the printer output wrapped around the cards; correct errors; and repeat the cycle.
I learned quite quickly that the lab was almost empty at 10 PM so I got in the habit of doing my homework at night. I made friends with the operator and learned how to operate the machine which had 5 MB disk drives that were larger than my washing machine. IIRC it had 64 MB of memory and that 32 MB were available to the user. The printers were really, really fast and someone had wired a speaker to some part of the CPU so one could differentiate sounds and sometimes discern what tasks it was doing.
Later that semester a time sharing system was set up and I switched to using a teletype for input and then used it for class but the FORTRAN was a little different, I taught myself BASIC at that time as well.
One other thing I remembered was that most of the students, I think they were actually in the School of Business, had a really hard time 'getting it'. I used to compose my homework while the instructor was answering their questions.
It was 'spaghetti' programming at its worst.
Circular runways have been discussed in two posts on Quora (www.quora.com) which have yet to be merged.
Nah, according to the text of the article it's powering neither the State of Hawaii nor the Island of Hawaii but provide some of the power to Kauai which will reduce its use of oil.
Burn dinosaurs? Oh, you mean oil that's made from dinosaurs. Yeah, we all know dinosaurs trekked to dying places before they kicked off just like elephants in more modern times, Took me a minute (no coffee, yet). I get it now, Mr. Sinclair.
Yes, but there could be pole dancing!
I missed an opportunity to learn coding in 1961 as the computer was 30 miles from campus, I had no car, and was taking semester hours of math and physics. Then I was accepted for graduate school in 1975 and decided that since my goal was to become involved with science and research I should acquire skills to handle data and signed up for FORTRAN.
FORTRAN was offered by the Business department and 'goto' was heavily used. It appeared that only two or three of us in the class of about 30 'got it' but I might have been biased since I was 10 years older than most. Debugging was a bitch. Once the code was key punched the packet of cards was placed in a container embedded in a wall; at some point the computer operator would run the packet through the CDC 6000 series main frame (60 bit words) and then the output wrapped around the card deck and put in a pick-up pile a few hours later. All this to find syntax errors! I wound up doing my coding from 9pm or so until 2am as wait times were substantially shorter. I made friends with the operator and learned how to run the main frame.
About this time a time sharing system using Teletype Model 33 ASR terminals distributed around the science building was installed so I started to use it for my FORTRAN class (slightly different than the CDC) and learned BASIC.
I was given a 6502 computer on a board designed for engineers could learn how to use the 6502 chip and I/O chips. Input was a keyboard, output a paper tape similar to a cash register tape. I learned some assembly on it but had to purchase a couple of tape decks and build an interface to save and load code in the 'Kansas City Format'. I wrote a version of Wumpas using the included BASIC in ROM and used this computer in a data structures class I took.
I did take introductory courses in Pascal and C, for instance, but was self taught in C++ and in the last 4 years Java and Dart.
I read all I could to understand what to do to conceptualize and then start to code projects. Since most the coding I've done is in support of data acquisition and converting raw data into data usable for analysis and display I find that I kind of cherry-pick topics to learn, skip others, and have spotty knowledge of some aspects of the languages I use.
Programming has mostly been a secondary task in my job descriptions. I think requiring primary school students to learn coding is about as sensible as requiring them to take calculus in order to be accepted in University for Humanities majors.
Including the 'needles' made of plant spines other sharp objects. Without this we wouldn't have been able to stitch pelts together to make clothing and clothing allowed us to live in nearly every environment.
My list also includes the knife. Early ones were made from stone, such as flint, by striking the flint with another stone shaping it into a hand held gadget with a cutting edge. It's the direct ancestor of my pocket knife. It provided a simple tool that was used to shape things such as pelts, branches, etc. Must be older than the needle.
Last, but definitely least, I'd say the fire kit which would consist of a stick of hardwood that could be made to rotate fast using the hands or a small bow onto a softer wood. Friction would create hot wood power that was used to start fires. Fire gave access to food which needed to be cooked such as roots and tubers and food which was better cooked such as meat. Our ancestors also used fire to manipulate their environment to their benefit.
Most of the gadgets in the article are not available to many or most of the earth's population but a cutting gadget, sewing gadget, and control of fire shaped provided for our species survival.
"The implantable device aims to convert neurons in the brain into electronic signals ..."
As an additional benefit a short time after implantation the subjects will qualify as news release editors or professional climate change deniers (but not for long).
What Nazi set the requirement that each question for Mike Godwin must have a comparison with Nazis or Hitler to make it a valid post?
Wow, children will no longer die from malaria. Most will live to be adults and consumers of resources, have babies that will not die from malaria and will also ...
Good thing we are so far from the carrying capacity of the earth that we will have time to address the over population problem.
The particles absorb photons over a wide band, violet through 'thermal'. Presumably the energy is dissipated as though from a black body unless it is removed by conduction. For example when illuminated by visible light they would radiate mostly in the infrared (unless the absorbed energy is removed by conduction) and would be seen to glow in infrared.
If they could be tweaked to absorb better at a wavelength that is best transmitted by human tissue and attached to an antibody that attaches to cancer cells they might be used as antennae to heat and destroy the cells.
I remember that an SF story a couple of decades ago predicted that cruise missiles and the computer technology to direct their swarming would make them inexpensive weapons of choice for some nations. Looks as if that time is upon us.
"...officials note, having this capability will force adversaries to focus on UAV swarm response." I hope that we also have some focus onUAV swarm response; the 'swarm' of Kamikaze attacks on our fleet off Okinawa in WWII inflicted great damage even though we had AA shells with proximity fuzes, early warning radar, and fighter aircraft for interception.
I don't see that Mr | Ms | Mrs Coward's comment is pertinent. I sure don't want to need to code "y = z++" in assembly, much less binary, each time I need it. Computer languages are made up of symbols that translate to several to many lines of code and come with libraries of still more abstract code and the trend of higher abstraction appears to be continuing. It's good have routines coded once that that are used many times. Productivity increases.
I agree with fff.
I suspect that the savings and utility will come with new construction where, for instance, the load carrying copper wires only go to the outlets or lights and the controls, which could control the light, socket, etc. could be wireless but their power would come a separate low voltage, low amperage, circuit this saving quite a bit of copper. The smartphone could control selected or all circuits but would not be the only control.
As an example thermostats control furnaces and air conditioners via low voltage, low amp, wires. New ones may also be controlled by a smartphone or computer.
It's probably not very cost efficient to convert existing homes in most cases.
BTW I get points when I mention that I can't go out as I need to update the firmware in my front door lock.
xkcd is great. I forwarded it to our statistician when it was first published!
I didn't see anything about the control group that thought they were given shocks but were not. Did I miss that? If not the study is seriously flawed and nearly worthless.