Do You Know
Questions & Answers on General Knowledge.
How is the body able to bend?
The human skeleton moves at its more than 230 joints, which are the places where bones connect. Those joints give you a basic range of motion. For example, everyone’s shoulder joints can rotate 360 degrees, and elbows can open and close to just under a 180 degree arc. The pull of ligaments—ropelike connective tissues that anchor one bone to the next around a joint—lengthen a bit to allow a joint to move, but keep the range of motion limited so that you don’t hurt yourself. So, the next time you are tempted to do a backbend or stretch your leg up to your ear, think of your joints and ligaments!
How do electronic water softeners, where a coil of wire is wrapped around the incoming water pipe, work?
Other than Australia, what are the islands included in Oceania?
Is the cheetah a big cat?
What is the force produced when two cars crash?
Where did croissants, or crescent rolls, originate?
How does Styrofoam work?
How do rechargeable batteries get recharged?
I read in an article about batteries about a Reverse Coulomb Counter. What is it?
Can astronauts drink soda in space?
What is Messier Object 31?
Who ruled Mesopotamia?
How does a rocket engine work?
What is the difference between fields and charges (magnetic and electric)?
Where is Niagara Falls?
How do the 2" diagonal color LCD screens used in some of the new digital video cameras work?
What caused the Peloponnesian war?
Why, when someone has won without question, do we say that he did it “hands down”?
Why do we need to look for new fuel?
What are clouds made of?
What do raptors eat?
What were some of the early machines like? What did they do?
How were tape recorders invented?
What is "snail mail" and how does it travel?
How many insects am I standing on?
How does the pressure inside a mercury vapor lamp affect its spectral distribution, particularly as a source of ultraviolet light?
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