Question

1. who invented the microwave.
2.who invented the coffee filter.
3.who invented the Braille writing system.
4.who invented the telephone.
5.who invented the kaleidoscope.
6.who invented the mobile phone.
7.who invented the electric stove.​

Answer 1

Answer:

1. Percy spenser , Robert N hall

2. Amalie Auguste Melitta Bentz

3.Louis Braille

4.Alexander gram bell

5. David Brewster

6.Donald cox

7.William Hadaway