Do You Know
Questions & Answers on General Knowledge.
What is a magnet?
A magnet is an object that has magnetic poles and therefore exerts forces or torques (twists) on other magnets. There are two types of these magnetic poles—called, for historical reasons, north and south. Like poles repel (north repels north and south repels south) while opposite poles attract (north attracts south). Since isolated north and south magnetic poles have never been found in nature, magnets always have equal amounts of north and south magnetic poles, making them magnetically neutral overall. In a permanent magnet, the magnetism originates in the electrons from which the magnet is formed. Electrons are intrinsically magnetic, each with its own north and south magnetic poles, and they give the permanent magnet its overall north and south poles.
How can you measure weight and/or mass through distance?
What is a Comsat?
Why do we call midday the “noon hour”?
Who were the most adventurous sailors from western Europe?
What are the key components of a microwave oven?
Why do many fluorescent lamps blink before they come on?
How does alternating current affect the laser? Does it make the laser reverse?
What items should be in a first-aid kit?
What are firewalls? What are they made of?
Is it true that no two snowflakes are the same?
What are team sports?
Why is a surplus of anything called a “backlog”?
Why do we call an enthusiastic amateur a “buff”?
If you use a heavier racket, will you be able to hit a badminton birdie farther?
Is there life on Mars?
Why do we define the rat race as “keeping up with the Joneses”?
Did the new millennium bring countries together?
What was special about the Colosseum?
Do all flowers close up at night?
What languages are spoken in Asia?
Why does a roller coaster end on a lower level than where it starts?
What is horsepower?
Are crocodiles living dinosaurs?
How do the automatic soda dispensers at fast food joints know when the cup is full?
Can fish live in symbiosis with other water creatures?
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Small Things That Can Bring You Joy
In helping others, you also help yourself. That s because altruism is proven to boost happiness. So spend some time volunteering for a community, charity, or religious organization. The more often you give back, the more selfsatisfaction you ll receive. Volunteering will also help you live longer, according to some studies.