Oh yeah.. great idea.. On his budget you could afford about 1/2 gallon of the stuff.. maybe he could keep his iPod cool when he's roasting in the server room.
A fan and an open door is about your only option with your budget..
My last job tried the cheep route for the test lab.. 20-30 servers in a 15x30 room hooked to a roof mount AC unit (don't know the tonage).. That stupid thing would break down every couple of months and couldn't keep up with the servers when it did work.
They tried some portable 1.5 ton units to suplement the roof unit but it was still always hot in there. 80-90f was the average
Then the portables started to break..
It all went to hell one weekend when everything failed and the room got up over 120f. The racks were to hot to touch and you could smell the servers cooking..
Only then the directors figured out that we couldn't complete testing on his pet projects because the lab was fried. Nobody listened before..
Then they wen't way way overkill and bought a 20 ton CRAC. The thing almost didn't hit through the door.
After that you didn't want to be in there without a heavy coat and a something heavy to keep your papers from blowing away (no joke!)
Bottom line.. cheep fixes will break sooner or later.. they are not designed for 365/24/7 operation at max capacity.. You need enough cooling to cool the room below the set temp and let the compressor cycle off for a bit.
She's not going to be in College forever.. Having a patented invention on her resume is going to help get her in the door at the research labs she want's to work in.
In classical black hole theory, the rate of interaction (and therefore accretion) would increase quadratically as the mass increased; that is, until it became Eddington limited. A black hole can't accrete too quickly or else the radiation pressure will blow away the surrounding matter. This results in a mass accretion rate that goes linearly with mass, leading to exponential growth of the black hole. The e-folding time for this accretion should be of order tens of millions of years. To accrete the earth, the black hole needs to undergo about 115 e-foldings -- that'll take several billion years
Call me Crazy but shouldn't they have done a test run on a new engine design before launching a commercial payload? Maybe you get a big discount for sending your payload on the untested rockets.
You know that management is too good to buy Honda, Toyota and Subaru.
Yeah Management wouldn't want a Honda(Acura), Toyota (Lexus), Nissan (Infiniti) or a Subaru. OK Subaru doesn't have a Luxo line like the rest but I see plenty of managers with B9 Tribecas and WRX TSIs
I can imagine this will be a complete nightmare to implement. Not just changing 200,000 pay records and tracking the difference for bak pay at a later day.
What about taxes, insurance, flex spending accounts, retirement accounts,
You are going to end up with payroll deductions that may excede the total check ammount.
They are only going to be paying people $262 a week! If it were me I'd owe the state $$ after insurance, returement and flex spending accounts were deducted.
Or do they plan on suspending all medical, retirement and flex spending payments? I doubt the insurance carrier would like that one bit.
I also hope they plan on implementing a free employee bus system and homeless shelters. Plus start in office welfare sign up stations and free lunch programs. State Employees won't have any $$ left to pay rent, mortgage, power, water, phone, car payments or even buy gas.
That kind of money would hardly cover daycare costs for 1 child.. would you work 40 hours a week for a net income of $50 before taxes, and costs just to get to work?
In all honesty he's a former Cobal and Fortran programer on mainframe systems. He's retired so it'll take lots of $$ and remote access to get his interest.
Oh yeah..before you start telling me that a 119hp TDI gulf makes 320x10^6j and I'm way off base answer me this.. Do you drive around all day with the gas smashed to the floor making max HP? I doubt it. If you did you wouldn't be getting anywhere close to 48mpg.
Last time I checked 100.8/130=0.775 or enough to get a 1989 Geo Metro about 38 miles
Now lets be completly fair.. While we are throwing percentages all over the places lets balance the playing field..
Yes Gas has 132x10^6 joules Diesel has 155x10^6 joules Current solar tech is 19% efficent so you 7 m array makes 10.4KW or 37.4x10^6 on 8 hours.. Most of us eat lunch and stay 8.5-9 hours but I'll wave that.
We'll loosse another 12% or so to charging/recovery of batteries or storing hydrogen so we have 32.9x10^6j left. (big assumption here.. I don't have a clue what we'll lose to hydrogen storage but I did find articles claiming 90% for Phosphoric acid fuel cells in the lab.)
Now.. about that ICE engine in you car.. it's 15-20% efficent at best I'm sorry to say. So lets pick a good one.. VW TDI diesel.. 48mpg.. I'll bet that hits the 20% mark. So it is using 31X10^6j of the 155X10^6j avaliable from it's gallon of diesel.. the rest goes as wasted heat and sound.
So in the end.. the Solar/Electric has a slight advantage on paper.. 32.9x10^6j for solar vs 31x10^6j for one of the best turbo deisels using todays technology..
Even if we give the solar/hydrogen/fuelcell car a 40% hit for losses using a conventional fuel cell I still get 19.7x10^6j That should get me 30miles in a car with comparable performance.
Now some will argue that the electric will have some loss in the drive train and electronic speed controls.. Yes it will but not having a clutch or 5 speed transmision will save some power. I call it a wash..
I'll give the ICE 1 big plus.. In the winter heating the car takes no power. We could use waste heat from the fuel cell to heat the solar car though..
Better hope you have a place to plug in on Rainy days though.
People arn't turning on google because they are starting to act corporate.. It's because the search results are turning to crap. They feel that Google is focusing on other projects and letting search slip.. I love google maps, Gmail and Sketchup.. Adwords is a necessary evil to fuel the beast..
I turned to google back when they started because they gave the best results.. Hotbot, Lyco, Yahoo and the others were barfing up banner ads and garbage results.. Google gave me the answers I was looking for..
These days I still get the answer but sometimes I have to wade through pages of garbage results that only redriect to some useless retail site or worse..
The only way Cuil will survive is to crank out good results. I could care less that they have a bigger index if it's all junk results. I remember back when google started up Lycos was always talking up their huge index.. where are they today?
Well honestly no I didn't use mush more than the basics. I didn't feel the need to come up with an equation to plot the curve of my lawn edging..
Like you I'm helping my wife with her college Algebra classes.. I think it's fun, she hates it. Yes I agree. Some things most people will never use but someone will and if they didn't have the chance to take that class then they may not have gone down that path.
Education needs to be more that the basics to get by every day.. It's exposure to new ideas and ways of looking at things. They need the chance to find what they want to do in life. Not be reailroaded into a cookie cutter "No Child Left Behind" model where everyone wins and you can do anything you want.. Yes you can do anything you want but you might not like doing it.. Find what you like, find what you hate.. choose a path.
I think it's more like they "refuse" to use 99% of what they learned on Math class..
I've used math quite a bit in every day things.. I had to calculate the area of my yard to order sod. I calculated the diameter of the tires on my car to see what other sizes will work well that might cost less Area of the living room to order flooring. hypotnuse (sp?) of a right triangle to see that I was square to the wall when laying the flooring out. Thought about converting a motorcycte to Electric today.. Did the math to conver HP to KW and then figure the # of 14S2P 9600mah Lipo packs it'll take.. 32!! for a lousy 20hp bilke.. Gah! I need more $$
These are all simple functions easily found with google if you forgot.. Nobody bothers.. It's to much trouble. I've been out of school for 20 years and I can still remember how this stuff works. What ever happened to the Do it yourself mentality.. Bunch of Lazy SOBs won't even pick up a calculator.
Hmm well maybe it's Walking 1/2 mile to the bus stop.. Getting on a bus and riding for 40 minutes through several neighborhoods spending half the time moving further away from my destination then when I started , transfering to another bus, riding another 20 minutes to work..
Yey! my 7 mile trip to work just took an hour! Now I'm at work and I need to go work at the datacenter.. Hmm no bus going to that facility.. I guess I'll walk 5 miles in 110 deg heat. Lunch time!.. hmm I have 30 minutes.. the bus will never make it in time.. Brown bag, starve or try the one resturant in walking dintance, Oh it closed last month..
Everyone has great points.. Touchscreens for a desktop suck but are great for the PDA crowd.. Laptops not so much.. A Wiimote type control is great for a presentation or moving through a DVD menu but would kill your arms over a long time. Also if you want to type you will have to put the stupid thing down moving your cursor god knows where.. I'd spend half my time finding it again..
So ya ou know what I want? I want them all with some extras..
I want a mouse I can pick up and use as a pointer. or even 2 of them so I can do multipoint control. I want a wireless keyboard with a touchpad or stick control (may already exist) so if I choose to work on the 60" plasma from the couch I don't have to keep reaching out to move a mouse on the table or whatever book I found to use as a mouse pad.
I want a wireless LCD monitor I can pop off the stand and use like a tablet PC with a touch screen and pointing stick.. Viewsonic had something close but it was really just a thin client for remote desktop. This would tie into using your HD TV as a giant monitor.. Just plug a wireless monitor module into your entertainment center.. No need keep the PC in the living room.
Now imagine that dual screen setup.. You on the couch with the 24" touchscreen LCD and then drag items from the desktop off onto the 60" on the wall. Grab the 2 pointing sticks off the LCD and use them Wiimote style on the big screen.
And finally, one word: smoke! These engines don't burn nearly as clean as the nice CGI suggests, ever seen a Shuttle launch? There will be tons of smoke, making it hard to see much, and increasing the safety distances even further.
Do you know what the shuttle main engiens burn? Hydrogen and Oxygen.. Hmm what does that make?? Oh yeah. Water! loads of water vapor.. The solid fuel booters are another thing alltogether and make a bit of smoke..
They only carry 40 gallons of Kero or Alcohol and 700lbs of LOX.. Average fuel cost for a race is $1000 or so.. Thats for Kero, LOX and Liquid Nitrogen to pressurise the fuel tank.
You'll spend more just getting the plane to the race.
Slashdot Mirror
Oh yeah.. great idea..
On his budget you could afford about 1/2 gallon of the stuff.. maybe he could keep his iPod cool when he's roasting in the server room.
A fan and an open door is about your only option with your budget..
My last job tried the cheep route for the test lab.. 20-30 servers in a 15x30 room hooked to a roof mount AC unit (don't know the tonage).. That stupid thing would break down every couple of months and couldn't keep up with the servers when it did work.
They tried some portable 1.5 ton units to suplement the roof unit but it was still always hot in there. 80-90f was the average
Then the portables started to break..
It all went to hell one weekend when everything failed and the room got up over 120f. The racks were to hot to touch and you could smell the servers cooking..
Only then the directors figured out that we couldn't complete testing on his pet projects because the lab was fried. Nobody listened before..
Then they wen't way way overkill and bought a 20 ton CRAC. The thing almost didn't hit through the door.
After that you didn't want to be in there without a heavy coat and a something heavy to keep your papers from blowing away (no joke!)
Bottom line.. cheep fixes will break sooner or later.. they are not designed for 365/24/7 operation at max capacity.. You need enough cooling to cool the room below the set temp and let the compressor cycle off for a bit.
My co-workers 2 year old Daughter was on the list. It took 4 years to get her name removed.
It must have been her evil plot to drop a bomb in her diaper.
Or look at this another way..
She's not going to be in College forever..
Having a patented invention on her resume is going to help get her in the door at the research labs she want's to work in.
Swiped from here
http://www.physicsforums.com/showpost.php?p=1002158&postcount=28
In classical black hole theory, the rate of interaction (and therefore accretion) would increase quadratically as the mass increased; that is, until it became Eddington limited. A black hole can't accrete too quickly or else the radiation pressure will blow away the surrounding matter. This results in a mass accretion rate that goes linearly with mass, leading to exponential growth of the black hole. The e-folding time for this accretion should be of order tens of millions of years. To accrete the earth, the black hole needs to undergo about 115 e-foldings -- that'll take several billion years
Call me Crazy but shouldn't they have done a test run on a new engine design before launching a commercial payload? Maybe you get a big discount for sending your payload on the untested rockets.
You know that management is too good to buy Honda, Toyota and Subaru.
Yeah Management wouldn't want a Honda(Acura), Toyota (Lexus), Nissan (Infiniti) or a Subaru.
OK Subaru doesn't have a Luxo line like the rest but I see plenty of managers with B9 Tribecas and WRX TSIs
BMW and Mercedes both operate US Factories too.
Sorry man but it's seattle only and won't be in effect untill January..
http://www.sustainablebusiness.com/index.cfm/go/news.display/id/16499
Sometimes Seattle gets this idea that it is the entire state but there is lots more out here.
Don't worry.. The plastic garbage bag ban is just around the corner..
You can look forward to buying a nice reuseable canvas garbage bag.
The stores should take an idea that Costco has always used..
Save the boxes everything comes in and send the groceries home in them.
OK so I spelled it wrong..
He's the programer. I couldn't tell Cobol from Fortran if you did a code dump and beat me over the head with it.
I can imagine this will be a complete nightmare to implement.
Not just changing 200,000 pay records and tracking the difference for bak pay at a later day.
What about taxes, insurance, flex spending accounts, retirement accounts,
You are going to end up with payroll deductions that may excede the total check ammount.
They are only going to be paying people $262 a week!
If it were me I'd owe the state $$ after insurance, returement and flex spending accounts were deducted.
Or do they plan on suspending all medical, retirement and flex spending payments? I doubt the insurance carrier would like that one bit.
I also hope they plan on implementing a free employee bus system and homeless shelters.
Plus start in office welfare sign up stations and free lunch programs.
State Employees won't have any $$ left to pay rent, mortgage, power, water, phone, car payments or even buy gas.
That kind of money would hardly cover daycare costs for 1 child.. would you work 40 hours a week for a net income of $50 before taxes, and costs just to get to work?
In all honesty he's a former Cobal and Fortran programer on mainframe systems.
He's retired so it'll take lots of $$ and remote access to get his interest.
Oh yeah..before you start telling me that a 119hp TDI gulf makes 320x10^6j and I'm way off base answer me this..
Do you drive around all day with the gas smashed to the floor making max HP? I doubt it.
If you did you wouldn't be getting anywhere close to 48mpg.
Last time I checked 100.8/130=0.775 or enough to get a 1989 Geo Metro about 38 miles
Now lets be completly fair..
While we are throwing percentages all over the places lets balance the playing field..
Yes Gas has 132x10^6 joules
Diesel has 155x10^6 joules
Current solar tech is 19% efficent so you 7 m array makes 10.4KW or 37.4x10^6 on 8 hours.. Most of us eat lunch and stay 8.5-9 hours but I'll wave that.
We'll loosse another 12% or so to charging/recovery of batteries or storing hydrogen so we have 32.9x10^6j left. (big assumption here.. I don't have a clue what we'll lose to hydrogen storage but I did find articles claiming 90% for Phosphoric acid fuel cells in the lab.)
Now.. about that ICE engine in you car.. it's 15-20% efficent at best I'm sorry to say.
So lets pick a good one.. VW TDI diesel.. 48mpg.. I'll bet that hits the 20% mark.
So it is using 31X10^6j of the 155X10^6j avaliable from it's gallon of diesel.. the rest goes as wasted heat and sound.
So in the end.. the Solar/Electric has a slight advantage on paper.. 32.9x10^6j for solar vs 31x10^6j for one of the best turbo deisels using todays technology..
Even if we give the solar/hydrogen/fuelcell car a 40% hit for losses using a conventional fuel cell I still get 19.7x10^6j
That should get me 30miles in a car with comparable performance.
Now some will argue that the electric will have some loss in the drive train and electronic speed controls..
Yes it will but not having a clutch or 5 speed transmision will save some power. I call it a wash..
I'll give the ICE 1 big plus.. In the winter heating the car takes no power.
We could use waste heat from the fuel cell to heat the solar car though..
Better hope you have a place to plug in on Rainy days though.
Sources
http://www.electroauto.com/info/pollmyth.shtml
http://www.howstuffworks.com/diesel3.htm
http://en.wikipedia.org/wiki/Fuel_cell
http://en.wikipedia.org/wiki/Phosphoric_acid_fuel_cell
People arn't turning on google because they are starting to act corporate..
It's because the search results are turning to crap. They feel that Google is focusing on other projects and letting search slip.. I love google maps, Gmail and Sketchup.. Adwords is a necessary evil to fuel the beast..
I turned to google back when they started because they gave the best results..
Hotbot, Lyco, Yahoo and the others were barfing up banner ads and garbage results..
Google gave me the answers I was looking for..
These days I still get the answer but sometimes I have to wade through pages of garbage results that only redriect to some useless retail site or worse..
The only way Cuil will survive is to crank out good results. I could care less that they have a bigger index if it's all junk results. I remember back when google started up Lycos was always talking up their huge index.. where are they today?
Wow, Senator John McCain right here on Slashdot..
Missed by 1,300 miles..
We have a group out here who's job is to find radioactive tumbleweeds.
Well honestly no I didn't use mush more than the basics.
I didn't feel the need to come up with an equation to plot the curve of my lawn edging..
Like you I'm helping my wife with her college Algebra classes.. I think it's fun, she hates it.
Yes I agree. Some things most people will never use but someone will and if they didn't have the chance to take that class then they may not have gone down that path.
Education needs to be more that the basics to get by every day.. It's exposure to new ideas and ways of looking at things. They need the chance to find what they want to do in life. Not be reailroaded into a cookie cutter "No Child Left Behind" model where everyone wins and you can do anything you want..
Yes you can do anything you want but you might not like doing it.. Find what you like, find what you hate.. choose a path.
I think it's more like they "refuse" to use 99% of what they learned on Math class..
I've used math quite a bit in every day things..
I had to calculate the area of my yard to order sod.
I calculated the diameter of the tires on my car to see what other sizes will work well that might cost less
Area of the living room to order flooring.
hypotnuse (sp?) of a right triangle to see that I was square to the wall when laying the flooring out.
Thought about converting a motorcycte to Electric today.. Did the math to conver HP to KW and then figure the # of 14S2P 9600mah Lipo packs it'll take.. 32!! for a lousy 20hp bilke.. Gah! I need more $$
These are all simple functions easily found with google if you forgot.. Nobody bothers.. It's to much trouble. I've been out of school for 20 years and I can still remember how this stuff works. What ever happened to the Do it yourself mentality.. Bunch of Lazy SOBs won't even pick up a calculator.
OK /Feelin Old Rant
Hmm well maybe it's Walking 1/2 mile to the bus stop..
Getting on a bus and riding for 40 minutes through several neighborhoods spending half the time moving further away from my destination then when I started , transfering to another bus, riding another 20 minutes to work..
Yey! my 7 mile trip to work just took an hour!
Now I'm at work and I need to go work at the datacenter.. Hmm no bus going to that facility.. I guess I'll walk 5 miles in 110 deg heat. Lunch time!.. hmm I have 30 minutes.. the bus will never make it in time.. Brown bag, starve or try the one resturant in walking dintance, Oh it closed last month..
Time to go home.. Another hour on the bus!! yay!
The smallest I am aware of is Angry Monk's world record 3.125" span 390 micro gram plane
http://www.rcgroups.com/forums/showthread.php?t=892415
or
Martin Newell's Shark at 2.65" span and 0.495 gram
http://mnewell.rchomepage.com/Planes/Shark/Shark-1.html
Flight time is "A few minutes"
Everyone has great points..
Touchscreens for a desktop suck but are great for the PDA crowd.. Laptops not so much..
A Wiimote type control is great for a presentation or moving through a DVD menu but would kill your arms over a long time. Also if you want to type you will have to put the stupid thing down moving your cursor god knows where.. I'd spend half my time finding it again..
So ya ou know what I want? I want them all with some extras..
I want a mouse I can pick up and use as a pointer. or even 2 of them so I can do multipoint control.
I want a wireless keyboard with a touchpad or stick control (may already exist) so if I choose to work on the 60" plasma from the couch I don't have to keep reaching out to move a mouse on the table or whatever book I found to use as a mouse pad.
I want a wireless LCD monitor I can pop off the stand and use like a tablet PC with a touch screen and pointing stick.. Viewsonic had something close but it was really just a thin client for remote desktop.
This would tie into using your HD TV as a giant monitor.. Just plug a wireless monitor module into your entertainment center.. No need keep the PC in the living room.
Now imagine that dual screen setup.. You on the couch with the 24" touchscreen LCD and then drag items from the desktop off onto the 60" on the wall. Grab the 2 pointing sticks off the LCD and use them Wiimote style on the big screen.
And finally, one word: smoke! These engines don't burn nearly as clean as the nice CGI suggests, ever seen a Shuttle launch? There will be tons of smoke, making it hard to see much, and increasing the safety distances even further.
Funny I don't see any smoke in the pics of the real thing running..
http://www.xcor.com/products/engines/4A3_LOX_alcohol_rocket_engine.html
The rocket planes run on LOX and Alcohol..
Do you know what the shuttle main engiens burn? Hydrogen and Oxygen.. Hmm what does that make?? Oh yeah. Water! loads of water vapor.. The solid fuel booters are another thing alltogether and make a bit of smoke..
They only carry 40 gallons of Kero or Alcohol and 700lbs of LOX..
Average fuel cost for a race is $1000 or so.. Thats for Kero, LOX and Liquid Nitrogen to pressurise the fuel tank.
You'll spend more just getting the plane to the race.
The initial designs use a 1800lb thrust Oxygen/Kerosene (Jet-A) engine
That one has 40 gallons of Jet-A and 10 cu ft of LOX (722) lbs
Just to compare NASCAR uses a 22 gallon tank and a 777 jet liner burns 50 gallons a minute
Then 2nd gen planes are using twin 400lb thrust Oxygen/Alcohol engines.
I couldn't find the fuel specs for the O2/Alcohol engines.