Sawaal
  • Home/
  • Searching for B

 Searching for "B"

Q:

What is Portland Bill?

Answer

 A Lighthouse

Report Error

View answer Workspace Report Error Discuss

Subject: World History

Q:

This statesman,politican,scholar,inventor,and one of early presidents of USA invented the swivel chair,the spherical sundial,the moldboard plow,and the cipher wheel.

A) George Washington B) Alexander Hamilton
C) John Adams D) Thomas Jefferson
 
Answer & Explanation Answer: D) Thomas Jefferson

Explanation:

 Thomas Jefferson (April 13, 1743 – July 4, 1826) was the third President of the United States (1801-1809) and the principal author of the Declaration of Independence (1776).

Report Error

View Answer Report Error Discuss

Filed Under: Inventions

Q:

When were blue jeans invented?

A) 1900s B) 1850s
C) 1860s D) 1870s
 
Answer & Explanation Answer: C) 1860s

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Inventions

Q:

When were bar code scanners invented?

A) 1940s B) 1950s
C) 1960s D) 1970s
 
Answer & Explanation Answer: D) 1970s

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Inventions

Q:

Who is the english physicist responsible for the "Big Bang Theory"?

A) Albert Einstein B) Michael Skube
C) George Gamow D) Roger Penrose
 
Answer & Explanation Answer: C) George Gamow

Explanation:

George Gamow. Gamow, who died in 1968, was a physicist, who published “Thirty Years that Shook Physics”.

Report Error

View Answer Report Error Discuss

Filed Under: Inventions

Q:

In the 1700s,who would pay the postage fee for letters before the stamp was invented?

A) The sender B) There was no fee
C) The receiver of the letter D) The post office
 
Answer & Explanation Answer: C) The receiver of the letter

Explanation:

Later in 1840, Rowland Hill invented the stamp, which was paid for by the sender, not the receiver.

Report Error

View Answer Report Error Discuss

Filed Under: Inventions

Q:

Cinematography was invented by

A) Graham Bell B) Edison
C) Zeiss D) Faraday
 
Answer & Explanation Answer: B) Edison

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Inventions

Q:

Revolver discovered by

A) Colt B) Mercafter
C) Bushwell D) Daimler
 
Answer & Explanation Answer: A) Colt

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Inventions