1. Why does a digital camera need a shutter- I think it should be able to electronically shunt the i...(more)
  2. How does the amount of air inside a soccer ball affect the distance it travels? And how is the am...(more)
  3. Electricity. It powers almost all household appliances as well as the complex electronics we rely...(more)
  4. Where did the constant pi (3.14159...) come from? Who discovered it and when? (more)
  5. Could you explain what the fourth dimension is, exactly? Upon looking at an example put up by Pro...(more)
  6. In math class, my teacher has been frequently making references to what I've mentally labelled, a...(more)
  7. I read somewhere there are a total of 9 dimensions. Can you elaborate on what these dimensions ar...(more)
  8. In the field of shape recognition, is there a way to register a single frame, such as the outline...(more)
  9. Can you explain the fourth dimension and state simply Einstein's Theory of Relativity? (more)
  10. Comparing the storage capacity of the human brain to computers, if data and memories in a human b...(more)
  11. My son, 13 y, has found a really good idea to prove the four colour map problem without computers...(more)
  12. We are studying the electromagnetic spectrum. We have a question. Can you speed up radio waves? I...(more)
  13. How are the tiny chips and wires that go into a computer made? They seem so tiny and fragile. (more)
  14. What is the linear function of a circumference of circle to its diameter? I know the ratio is equ...(more)
  15. What is 2 with the power of 4? and can u tell me some consideration of microwaves? (more)
  16. What component controls how data is written on a hard drive? (more)
  17. I have an interest in algebraic manipulation of known physical/chemical laws & principles. I am t...(more)
  18. What is meant by booting in a computer? (more)
  19. Why are portable phones called cellular phones? How do they work? (more)
  20. I have 2 parents and 4 grandparents (that's 2 generations). If I calculate the number of my ances...(more)