From TreeHugger:
The Wind Explorer--a kite-assisted lightweight electric car--drove 3,107 miles across Australia in 18 days using only $15 worth of electricity. As if that wasn't amazing enough, they journey set three world records: the first continental crossing by a wind-powered
Earlier this week, Analog Devices Inc. (ADI) was named one of 13 winners of the China Annual Creativity in Electronics (ACE) Award for its ADL 5201 / ADL 5202 variable gain amplifier (VGA). Based in Norwood, Massachusetts, ADI is a global supplier of analog, mixed-signal, and digital signal proce
From Popular Science - New Technology, Science News, The Future Now:
April 1956 The bubble house, the computerized home, the floating cabin and more places we imagined you'd live in during the decades to come. Going by our archives, the only thing more hyped-up than flying cars
From EurekAlert!:
A team of scientists led by John Badding, a professor of chemistry at Penn State University, has developed the very first optical fiber made with a core of zinc selenide -- a light-yellow compound that can be used as a semiconductor. The new class of optical fiber
Despite Egypt's sophisticated Internet infrastructure, the government was able to shut down online communications rather swiftly. Could the same be done here in the U.S.? Is it legal for the federal government to take such action? Several bills are already working their way through Congress that wou
Headlines like "U.S. Drinking Water: Contaminated and Safe" probably don't allay many people's fears about the safety of their drinking water. You're more informed about this issue than the general public, so we'd like to know your view. Do you drink tap water on a regular basis? If the answer is ye
Consumers and rights groups are concerned that the stockpiles of personal information gathered by online tracking will be misused and individuals' privacy will be abused. But how do you determine which tracking is unwanted? Even if you could, the success of countermeasures in any form depends on Web
Is it true technically:
"
One 75-watt bulb gives more light than three 25-watt bulbs."
Ref
Dear All,
We are in construction phase of a project. We are facing a difficulty of correlation. We have 3-wire proximity switches in field while we have designed our DCS for 2-wire System. Kindly help us that how can we use 1 pair cable 1.5 mm2 for these switches?
Although many expert research labs have said that generating the power to provide the frequency ignition of salt water makes this process inefficient or impractical for use in cars. I feel that other types of engines would be more practical. The ceramic tubine, coupled with a flywheel and an efficie
When setting Z-0 For overall length, I have to program .020 less than actually needed. Any ideas why???
To all Hvac Techs/ Engineers/ Experienced Plumbers,
An interesting disagreement between 2 techs happened this week. Please express an "expert" opinion on the following: A low pressure gas furnace needed to be derated for high altitude. A factory deration orifice was shipped w/ the heater, which
1 section of 2" dia. sched. 40 pvc pipe with end caps, 36" long.
How much cold rolled steel weight can this piece hold in fresh water?
IS there a SIMPLE formula?
Thank you.
Can someone out there help me design an overcurrent relay to protect a welding transformer whose load current measured through a C.T (current transformer) shows 2 amperes on secondary side of the C.T?
Guys, I have a plastic part used as a cover for a light source of a Led light fixture. There is a grove near the outer edge of the cover. We insert a round profiled gasket in this groove. Like a o-ring, for sealing the cover to fixture. It's time consuming. I plan to mold both the cover and gas
Hi, All
kindly please advise the redius of protection of the ground bed anode mounted vertical below the ground 100M depth.
Regard's
Hi, All
what is the min or maximum thickness of the galvanize paint on any structure i-beam or any steel material. please provide any details.
Regad's
Bruce Dale, chemical engineering professor at Michigan State University has the dual distinction of debunking both the benefits of biofuels and the gloomy environmental outlook of many other scientists. However, do we have a baseline of factors with which to compare scenarios, or are the experts sti
Reality television is full of desperate dieters and perky personal trainers trying to capitalize on the obesity crisis in the U.S. (and elsewhere). The USDA just released a new set of dietary guidelines, but not all experts from nutritionists to economists are happy about it. Is obesity simply the c
A CMMS can track equipment operation and save money by avoiding unplanned downtime, but did you know it can also be used to track energy consumption and use that information to judge equipment health? The same data that reveals failing motors and equipment can also be used to balance energy consumpt