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!
Is it a frog or a toad?
What are team sports?
Why does combining red, green, and blue light create white light? Is this just an accepted fact?
Can I look at an atom?
When and why were leap years introduced?
Is a CB radio also an AM radio?
What is the difference between a magnet and an electromagnet? Why are some metals automatically magnetic?
Why can't we see the Moon during the day?
Can rays be dangerous?
What do the terms critical, sub-critical and super-critical mass really mean?
Are water plants always good for the pond?
How do neon lights work?
What causes the formation of mountains and valleys on the ocean floor?
How does an integrated circuit store so much information?
When did the USA get its Constitution?
If light has no mass, then how can it be affected by gravity? What property of light is gravitational force acting on?
Is it true that you can get lead poisoning in your home more easily from hot water than from cold water?
How did these navigations begin?
Which was the first ever space station?
Why is it that images are right side up (instead of upside-down) when looking through a magnifying glass?
What is the importance of America’s interstate highways?
How can glass be shattered with sound?
Please explain ideal mechanical advantage and actual mechanical advantage. How can I demonstrate these two ideas?
How does a fan compare to a propeller? Why does a fan blow air while a propeller has "lift"?
Why is mealtime sometimes called “chow time”?
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With its prestigious museums, famous street markets, and bustling financial center, its no wonder that London is one of the worlds most visited cities. What are you waiting for? Londons calling