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
Astronomy

Will the Sun Shine Forever?

The Sun is a huge nuclear furnace. It operates by converting hydrogen into helium. In this process, which is called nuclear fusion, it loses mass and produces energy according to Einstein's famous ... Continue reading

SunLifetime
Geology

Glaciers: Rivers of Ice

Glaciers are massive sheets of ice that occur on every continent of the world except Australia. These giant ice slabs have a humble beginning, as the tiny snowflakes in winter precipitation that ... Continue reading

Glaciers
Biology

How Do Bacteria Reproduce?

Bacteria are microorganisms that have been around for billions of years. How have they survived all that time? Microorganisms are experts at reproducing, not only can they produce new bacteria fast, ... Continue reading

HowDoBacteriaReproduce
Astronomy

Wernher Von Braun

Wernher Von Braun was one of the world's first and foremost rocket engineers and a leading authority on space travel. His will to expand man's knowledge through the exploration of space led to the ... Continue reading

VonBraun

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.