Warning: Cannot modify header information - headers already sent by (output started at /home/content/70/7481070/html/appsrc/doyouknow.php:18) in /home/content/70/7481070/html/header.php on line 20

Warning: Cannot modify header information - headers already sent by (output started at /home/content/70/7481070/html/appsrc/doyouknow.php:18) in /home/content/70/7481070/html/header.php on line 21
Do You Know
Questions & Answers on General Knowledge.

How old is Earth?
Scientists estimate that Earth—born out of a swirling cloud of gas and dust—is about 4.6 billion years old. They have reached this conclusion by studying Moon rocks and meteorites (rocks that have fallen from space to Earth) that they believe were formed at the same time as our planet.
--- >>>
More Questions:
  • How did wire recorders work?
  • Was it only the poor who revolted against the king?
  • How many hair follicles do I have?
  • I understand how computer information travels as bits from source to destination, but how does each bit travel through the wire at a molecular level?
  • Does the size of the bulb affect its intensity?
  • Who was Robespierre?
  • Does everyone have the same kind of blood?
  • Why are monkeys called social animals?
  • How does the United States’s size compare with that of other countries?
  • What is a jet plane?
  • What causes a magnifying glass within a ray of sun to burn such a small, specific spot? Is it the shape of the glass?
  • Why do we call money saved for a rainy day a “nest egg”?
  • During a total solar eclipse, does the moon make first contact with the sun on the eastern limb or the western limb? Can you explain this to me?
  • How does radar absorbent materials work. How effective is stealth technology?
  • For aerosol sprays such as Lysol, are they essentially creating "dustlike" particles that float in the air?
  • What are poles of a magnet?
  • What do some permanent-magnet generators have stainless-steel axles?
  • Do neon lights have glass that is not colored, but has phosphors that emit a particular color?
  • Why are pigs so dirty?
  • What are clouds made of?
  • How does electricity get from the generating station to the outlet in my living room?
  • How can you know that the pound used to weigh your apples is the same whether you are in New York City or Los Angeles?
  • Are there any other dwarf planets?
  • Why does a moving magnet excite charges?
  • Was archaeopteryx a bird or a dinosaur?
  • Most Influential People in the World
  • Benefits of Fruits
  • Natural Wonders of the World
  • P T Usha
  • Lisbon
  • Stellar Photos Of Earth Taken From Space

  • Best outdoor Cinema in the world

    Luna Cinema London UK

    Fans of Battersea Power Station will have one last chance to enjoy a film in the parkland surrounding the industrial beast this summer, before it is closed down as part of a major redevelopment. Luna Cinema is renowned for its open air screenings across the land including Lincoln Castle, Ascot Racecourse and Hampton Court Palace but it is Battersea that gets the biggest thumbs up from us with its September line up of American Hustle and Django Unchained.

    Chourishi Systems