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Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts
By Tia Ghose, Senior Writer | May 7, 2017 07:42am ET

Credit: Fer Gregory/Shutterstok
Today (May 7), marks the 150th anniversary of one of Alfred Nobel's patents for dynamite, which was first patented in 1867.

The explosive forever reshaped the world, revolutionizing warfare and construction, to the lifelong chagrin of its inventor Nobel. From its origins to its use in modern warfare to its eventual fate, here are some facts about the explosive.



Safer explosive
Though Nobel's invention was huge, it wasn't the first explosive created. Gunpowder was invented in China in the ninth century A.D., and had been used in European warfare since the 1200s. And in 1846, an Italian man, Ascanio Sobrero, had invented the highly volatile explosive nitroglycerin, according to the University of Bristol chemistry website. The process of making it was fairly simple: It involved adding glycerin to a mixture of nitric acid and sulfuric acid compounds. But nitroglycerin had a pesky habit: When it was impure it could explode without warning, and the slightest jostle could cause explosions as well, according to the University of Bristol. [Mad Genius: 10 Odd Tales About Famous Scientists]

Flyboard Air hoverboard from Zapato Recing.

Flyboard Air Hoverboard

When you post video of your new jet powered hoverboard, and half the world thinks it has to be fake, you know you've got something good. But Frank Zapata's Flyboard Air is no hoax, it's the real deal. How does one know? All you gotta do is ask him.


These days, with millions of astute viewers scrutizing every physical detail, the easiest way to make a convincing video that gets all the physics of something like a jetpack flight right, is to first make the jetpack. What's the hardest part of making a magic flying carpet you might ask? "The power is there", says Frank, "and has been for some time, the trick is controlling it." In other words, the technical challenge is building a responsive interface that integrates the control capabilities of the human nervous system and musculature with that of your machine.

Where the response time of a man-sized electric fan propulsion system may be around a second, a turbine of a similar power output would have a minimum lag of about three seconds. That's one of the reasons, if not the main reason that turbine powered cars never really took off. But the ear doesn't lie. If your craft sounds more like a hummingbird than a fighter jet, you can expect it to behave more like one in a strong headwind.
Start generating electricity from Tomato waste.
Electricity from Tomato
After a huge research on electricity from waste a team of scientists is explore an unusual source of electricity—damaged tomatoes that are unsuitable for sale at the grocery store. Their pilot project involves a biological-based fuel cell that uses tomato waste left over from harvests in Florida.
Damaged tomatoes can't be used, but can be used to generate electricity.
The researchers present their work today at the 251st National Meeting & Exposition of the American Chemical Society (ACS).
1. Height of reaction of chemicals.
Chemical Reaction

2. Aladdin Magic Carpet.
Magic Mat
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