Videos
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DIY – How to grow perfect tomatoes at home in containers
by Marshall Brain | December 30, 2009
If you love fresh tomatoes but do not like tilling, weeding, watering and all the other stuff that goes with normal gardening, then this DIY self-watering container system for growing tomatoes may be for you. It also works great if you have no space for a garden. This system would easily fit on a patio [...]
How do they manufacture huge granite columns for ornate buildings?
by Marshall Brain | December 30, 2009
You Asked: How do they manufacture huge granite columns for ornate buildings? — Allen, Greenville, Ohio Marshall Brain Answers: For thousands of years, people have been making stone structures by hand. They cut the rocks out of the ground by hand, carved them by hand and then hoisted them into place. This was true of [...]
Predictions about the Apple Tablet / iSlate / iTablet
by Marshall Brain | December 30, 2009
In the following video, a number of predictions are made about the Apple Tablet / iSlate / iTablet. Two months from now we can look back and see how close he got it: Predictions include: – The price: $500 – $1,000, he desires $700. – The inclusion of a camera that can detect hand motions [...]
Critics around the world agree that Citizen Kane is one of history’s best films — but who was the basis of this story? Listen in as Sarah and Katie take a look back on the life of William Randolph Hearst in this episode.
Over the past year, the Techstuff crew has explored hundreds of topics, from the iPhone to Linux and everything in between — but what will next year bring? Join Jon and Chris as they close out 2009 with a few predictions for the world of tech in 2010.
If you’ve ever watched a jet engine start, you’ve probably noticed that the blades begin to rotate slowly before spinning up to full speed — but why? Listen in as Marshall Brain breaks down the science behind jet engines in this episode.
In this episode Cristen and Molly continue their exploration of CARE, a nonprofit organization headquartered in Atlanta. Tune in to learn more the link between women’s rights and the alleviation of poverty.
The Toilet Than Can Save Our Water and Energy Problems – “Jeff Conant, author of The Community Guide to Environmental Health, has traveled the world in search of the perfect “waterless toilet.” He found it in the Mexican town of Tepotzlan, which boasts hundreds of “non-traditional waterless” eco-loos…” The technology and the terrorist – “On [...]
You Asked: What type of electric motors do electric cars have? Like the Tesla’s 185kw motor? — Paul, Johannesburg, South Africa Marshall Brain Answers: The Tesla uses a single electric motor at the back of the vehicle. The motor weighs 70 pounds but produces about 250 horsepower. A gasoline engine producing that much horsepower weighs [...]
So you have something, and you want to stop other people from stealing it. It might be something simple, like a sandwich, that keeps getting stolen from the break room refrigerator. Or it might be something valuable, like an expensive car radio, which is often accompanied by an expensive broken window. How do you solve [...]
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