Explanation

Brexit took place at 23:00 GMT on 31 January 2020 (00:00 1 February 2020 CET)

History

The Brexit referendum was held on 23 June 2016 in the UK.

In the referendum, the UK voted to leave the European Union (EU).

After negotiations, the official exit from the EU occurred on 31 January 2020.

Brexit marked the first time a member state left the EU.

Explanation

The velocity of sound in air at sea level under standard conditions (around 15°C or 59°F) is approximately 343 meters per second (m/s)

The speeds of sound in different materials:

• Air: 343 m/s
• Water: 1433 m/s
• Wood: 3300-3600 m/s
• Brick: 4176 m/s
• Steel: 6100 m/s
• Diamond: 12000 m/s

Explanation

Explanation

The first man to land on the moon was Neil Armstrong

He took the first step to the lunar surface on 20 July 1969

He went to the lunar surface in called Apollo 11.

Additional information:

Buzz Aldrin became the second person to land on the moon 

Yurl Gagarin was the first person to go to space in the world.

Rakesh Sharma was the first Indian to go into space.

Explanation

Both Alpha and Beta are conventional designations for pre-released software in the software release life cycle. 

Alpha is for internal, early-stage testing (focusing on core functionality & big bugs),

Beta is for external, wider user testing (focusing on real-world use & polish)

Explanation

The theory describing the universe's beginning with a rapid expansion from a hot, dense state is known as the Big Bang theory

is an American television sitcom created by Chuck Lorre and Bill Prady for CBS.

It aired from September 24, 2007, to May 16, 2019

Explanation

Gigantic clouds of dust and gas in space are called nebulae

Primarily hydrogen and helium, plus dust (silicates, carbon, ice). 

Occupying the space between stars and acting as a nursery for new stars