Friday Quiz Answers 07/11/2025

1. What invention is commonly credited as the first-ever human tool?
   Answer: C) The stone axe.

2. Who is famously known for inventing the telephone in 1876?
   Answer: C) Alexander Graham Bell.

3. What household item did Marie Curie’s work help pave the way for?
   Answer: C) X-ray machines.

4. Which invention was originally called the "chronophotographic gun"?
   Answer: A) Motion picture camera.

5. The first email was sent in which decade?
   Answer: B) 1970s.

6. What iconic invention was introduced to the world at the 1879 Paris Exposition?
   Answer: C) Electric light bulb.

7. Who is credited with inventing the World Wide Web in 1989?
   Answer: B) Tim Berners-Lee.

8. The ballpoint pen was patented by László Bíró. What was his nationality?
   Answer: A) Hungarian.

9. What revolutionary invention was created by Percy Spencer... by accident?
   Answer: C) Microwave oven.

10. Which transport breakthrough came first?
    Answer: D) The hot air balloon.

Bright Source Bonus Question

Q. Which lighting technology uses a layer of phosphor to convert ultraviolet light into visible light?
Answer: CFL – Compact Fluorescent Lamps use a phosphor coating to convert UV light into visible light.