ScienceIQ.com

For Want Of An O-Ring

Who can forget the Challenger disaster of 1986, the culprit, a failed O-ring. But what exactly is an O-ring and how did it cause the destruction of this space shuttle? When surfaces are flat, gaskets are used to form a tight seal. How about when the machined surfaces are not flat but round? The sealing function in that case is served by an O-ring. ...

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ForWantOfAnORing
Engineering

Solid Smoke

Ever wondered what is the least dense solid in the world? Well, it is the so called Solid Smoke aerogel developed decades ago by aerospace engineers and recently perfected to its newest, lightest ... Continue reading

SolidSmoke
Geology

Man Made Clouds

There are many different types of clouds in the sky, but did you know that some of them are man-made? 'Contrails' are the long, thin clouds that are left by airplanes as they fly past. Contrails ... Continue reading

ManMadeClouds
Biology

Eukaryotic Organisms

Eukaryotes include fungi, animals, and plants as well as some unicellular organisms. Eukaryotic cells are about 10 times the size of a prokaryote and can be as much as 1000 times greater in volume. ... Continue reading

EukaryoticOrganisms
Biology

You Can Learn A Lot From A Microbe.

You can learn a lot from a microbe. Right now, a tiny critter from the Dead Sea is teaching scientists new things about biotechnology, cancer, possible life on other worlds. And that's just for ... Continue reading

YouCanLearnALotFromAMicrobe

Your Senses Make Sense of Energy

EnergySenseYour different sense receptors are designed to gather different kinds of sensory information about the world around you. That information is in the form of different kinds of energy. Your eyes sense light which is electromagnetic energy. Your senses of taste and smell detect chemical energy. Other senses respond to mechanical or thermal energy. But even though your senses are sensitive to different forms of energy, they all convert each of them into a single kind - electrical energy.

If all the sense receptors convert all these different kinds of energy into a single kind, why is it that we have many senses, instead of just one? The answer is that each of the receptors connects to a different part of the brain. So colors, shapes, tones, smells, and flavors are mental constructs created by your brain out of sensory data. It’s the brain that converts the electrical energy into what we know as vision, sound, smell, taste, pressure, pain, or heat.