- Why do chalks sometimes scratch on the blackboards?
- Why do loudspeakers hum?
- Optical fibers are found in nature, give an example.
- Magnetic fields cannot do any work, then how does one magnet move towards/away from another?
- How does one describe the radius of a black hole? (No. It DOES NOT go like….The radius of this black hole is really nice.)
- How did the element Antimony get its name?
- Which is the only stable element named after a real person?
- This guy took a patent for "socks for smelly feet" but he is better known to all of us for some other invention. Who is he?
- The first U.S. space shuttle was initially named "Constitution" but the name was later changed. Why?
- Which famous scientist used to estimate the strength of electric current by touching the live wire and feeling the shock?
|
