ScienceIQ.com

Vitreous Humor, Sclera and Other Yukky Eye Stuff

Eyes are one of the most complex organs humans have. In fact the optic nerve connection to the brain is so complex and delicate that no one has ever succeeded in transplanting the whole eye (the cornea, the clear covering on the front part of the eye, has been successfully transplanted). ...

Continue reading...

HumanEye
Geology

Fossil Energy - The Basics

Contrary to what many people believe, fossil fuels are not the remains of dead dinosaurs. In fact, most of the fossil fuels we find today were formed millions of years before the first dinosaurs. ... Continue reading

FossilEnergyTheBasics
Engineering

Taming Twin Tornadoes

Every time a jet airplane flies through the sky, it creates two invisible tornados. They're not the kind of tornados that strike in severe weather. These tornados are called vortices and can cause ... Continue reading

TwinTornadoes
Biology

Prokaryotic Organisms

It appears that life arose on earth about 4 billion years ago. The simplest of cells, and the first types of cells to evolve, were prokaryotic cells--organisms that lack a nuclear membrane, the ... Continue reading

ProkaryoticOrganisms
Physics

Can You Miss the Earth?

Have you ever wondered why astronauts float in space? Well, it isn't because there is no gravity in space. Astronauts float because they are in constant free fall. If a baseball pitcher throws a ... Continue reading

Weightlessness

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.