Do You Know
Questions & Answers on General Knowledge.
What does a satellite do?
A satellite is any body or object that moves around another; for example, the Moon is a satellite of Earth. But when most scientists use the word “satellite” they are referring to a man-made object that orbits Earth and collects and returns data. A single satellite may serve many purposes. Satellites can be used for weather forecasts by measuring clouds, winds, and the temperature of the atmosphere from space. They are also used in military contexts to track battle zones, watch for missile launches and nuclear testing, spy on countries, and track incoming objects like meteoroids. Satellites also send television programs and telephone calls from one continent to another. The first Global Positioning Satellite (GPS) was launched on November 22, 1978, and today GPS is the standard navigation tool used by the military, scientists, and industry. Space satellites are used for learning about the universe, including how the Sun and Earth interact and details about planets.
How does a projector work?
What is a tornado?
Why do we call the first weeks of marriage a “honeymoon”?
Do songbirds only live on land?
I enjoy watching the pole-vaulters at the Olympics, especially Daly Thompson. Could you explain the physics of the pole vault for me?
How much air does a person breathe in a lifetime?
How did the first reptiles evolve on Earth?
If there were no friction or air resistance, would the bowling ball pendulum continue in motion forever?
Is it true that a person in space doesn't get as old as if he was on the earth?
What is African theatre about?
What do the words algebra, sofa, sash, and sequin have in common?
What space probes have been launched to Mercury?
My teacher said that if you lift a 5 pound sack, you are doing work but if you carry the sack, you aren't doing any work. Why is that?
What is a supernova?
Which is more economical: operating our air conditioner at 75 °F or operating it at 78 °F and putting fans in front of the vents?
Can you explain gyroscopic precession?
How thick is a lighting bolt?
Can toads help out in the garden?
Is it true that microwaves cause cancer?
Which ocean is also known as the Southern Ocean?
Should I tell my parents I am being bullied?
Where are the largest factories located?
How did the Pacific Ocean get its name?
Which is the largest of all oceans?
Do you know anything about a special kind of digital tape that could replace the CD?
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