an electric agricultural tractor without battery, running in a spiral, working a circular field. Power is supplied by cable (held aloft over crop) reeled out from center of spiral. Additional vehicles running the spiral used as moving power line towers, enabling a great maximum possible distance be
Category Archives: Aerospace
2000 chevey cavilier
how much would it be to replace , on board computer in this car 2000 chevey cavilier
Home Photovoltaic System Payback
I saw this exchange between a couple of members
CaptMoosie:
3). Going Green in other ways is a huge hobby of mine! Installation of a 7.56 Kw Solar PV system on our house roof to help us get nearly off the electric grid.....it'll be installed sometime this next month by the S
millwright exam
Anyone one written this exam lately
Frigidaire Freezer rust forming after only 2.5 years
After two and a half year of service I noticed brown de-colorization on the bottom of the freezer. Rust everywhere...? Now I must say the thing cost 200 bucks so what can you expect?
I still think its a bit quick to be so rusted.
Anyway, so while working the rust I kept thi
Wind fences
Looking for a rough estimate of what wind fences cost? Thinking about the fabric style wind fences; like around ball diamond and industrial areas. 20-40ft high, 100-200ft long.
Cool Cars: The 1929 Model A Snowbird
Model A and Model T snowmobiles are a perennial favorite around these parts, so we naturally investigated this particular 1929 Model A Snowbird that recently appeared on Hemmings.com, being offered out of St. Louis for $69,500. From the seller's description:
"This 1929 Ford Model A Tudor
Has copyright gone too far?
Here's just a sample of works that would have passed into the public domain this evening :
http://www.law.duke.edu/cspd/publicdomainday/pre1976
Instead they will be locked up long before we are all dead.
Not what the Founders had in mind at all.
fire figting
i want to have some information about how to supervise aproject of fire fighting in big hanger for air crafts and is it allowed to have the foam blader tank in out side with no room to cover it and how can i test the whole system and eccepting the final project from contractor stating of water tank
Wassup with lead solder anyhow?
I had the chore yesterday of prepping some equipment for use in an electronics lab. There were about two dozen breadboard like arrangments of resistors and capacitors, most of which had been put aside and marked "problems" or similar. When I flipped the first one open, I saw the problem right away.
Vikram Ambalal Sarabhai: Father of the Indian Space Program
Today marks the anniversary of the death of one of India's greatest scientists, Dr. Vikram Ambalal Sarabhai. Regarded as the father of India's space program, the noted physicist is also remembered as "a rare combination of an innovator, industrialist and visionary".
Early
Priming Lube Oil Pump
Dear Friends , Can anyone please explain the control scheme of the priming lube oil pump and the mechanical oil pump in a ship engine using pressure switch.
Overdue and Presumed Missing: The Loss of the USS Scorpion (SSN-589)
Almost three weeks ago, myself and a group of approximately twenty Albany, New York area engineers, including a colleague from GlobalSpec, had the privilege of enjoying an after work tribute dinner-talk by Ray Misiewicz, retired Knolls Atomic Power Laboratory (KAPL) nuclear designer.
Ray - i
How to Detect Oil Contamination in Water
We have a lube oil cooler where the hot lube oil is flowing at a pressure of about 28 barg on the shell side.The tube side contains water at around 4 barg.
We are interested in detecting oil leakage in water when the tube has a small leak or it ruptures.
The water is a closed loop
Pitting inside of inner race bearings?
we r using 23222smb fag india made bearing we find pitting inside of the inner race of bearing please give us technical support in this matter
which type of grease should we
use?
system controller
hi every body
please who can give me ebook about controller system .
or any book explane dynamic system .
NYC High Schoolers Find Fake Food Labeling With DNA
From Scientific American:
Before you pay big money for caviar, check with two New York City high school students. Brenda Tan and Matt Cost worked with DNA barcoding experts at Rockefeller University and other researchers at the American Museum of Natural History to identify hundred
Are Engines the Future of Solar Power?
From Scientific American:
Nearly 200 years after their invention, and decades after first being proposed as a method of harnessing solar energy, 60 sun-powered Stirling engines are about to begin generating electricity outside Phoenix, Ariz., for the first time. Such engines, which
Russia Plans to Save Earth From Rogue Asteroid
From Wired Top Stories:
In an interview today with Voice of Russia radio, Russia's space agency chief said discussions would begin soon over a plan to save the world from a collision with a massive asteroid. It's not clear how, exactly, the Russians plan to deflect Apophis, a ch
NASA Plans Backup Astronaut Escape System
From Discovery News - Top Stories:
Determined never to repeat the tragic Challenger launch accident, NASA not only is developing a crew escape system for the space shuttles' replacements; the space agency also has a backup system that could fly astronauts to safety in case of an em