Infrared Headphones
Infrared headphones use infrared light to carry an information signal from a transmitter to a receiver. Sounds simple enough, but the actual process is very complicated. The human ear gathers sound as compression waves pass through and distort the air. These…
Continue reading →
More science facts
Geology
Weathering, Erosion, and Deposition
Weathering, erosion, and deposition are processes continually at work on or near earth's surface. Over time,…
Geology
Silent Earthquakes
Try this demonstration of earthquake movement. Shape modeling clay into two blocks or get two firm sponge…
Medicine
Facts About Angina
Angina is a recurring pain or discomfort in the chest that happens when some part of the heart does not…
Astronomy
The Strange Spin of Uranus
Directional terms like north and south make sense here on Earth. The north and south axis of the Earth is…