What Is Radar?
Radar, or radiolocation, as it was called in the early days, is the use of radio waves to find the whereabouts of aircraft or ships. Electro
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How Did People in Ancient times Measured the Passing of Time?
The earliest natural events to be recognized were in the heavens, but during the course of the year there were many other events that indica
What Is a Squint?
What Is a Squint? A squint, or strabismus, is the name given to a condition in which both eyes do not point in the same direction. Whilst on
Why Are Some Moths Attracted by Lights?
Why Are Some Moths Attracted by Lights? Moths are attracted to lights at night because they mistake them for the light of the moon which the
When Do Worms Turn?
If the earthworm detects an unfamiliar object next to its skin, the muscles will contract immediately and the body will turn to avoid the ob