Explanation

• First successful personal computer: Altair 8800
• Developed by: MITS
• Introduced in: 1975
• IBM PC launched: 1981

Last updated on 26 Oct 2026

Explanation

• Wang Yaping became the first Chinese woman to perform a spacewalk on 7 November 2021.
• She conducted the spacewalk during the Shenzhou-13 mission aboard China’s Tiangong Space Station.
• She was the second Chinese woman to travel into space, flying aboard Shenzhou-10 in 2013.

Last verified on 22-10-2026

Explanation

• The United States conducted the world’s first nuclear test, code-named Trinity, on 16 July 1945.
• The test took place in the Jornada del Muerto desert in New Mexico, USA.
• The experiment was part of the Manhattan Project, a secret American-led programme to develop atomic weapons during World War II.

Additional information:

• Soviet Union: 1949
• United Kingdom: 1952
• China: 1964

Last verified on 22-10-2026

Explanation

• India conducted its first nuclear test on May 18, 1974
• Codename: Smiling Buddha (or Pokhran-I).
• Location: Pokhran, Rajasthan, India.
• Type: Plutonium fission device.
• Smiling Buddha, other name Pokhran-I 
• Number of tests 1

Last updated by NA on 24-April-2026

Explanation

• Movie Title: The Challenge (Russian: Вызов or Vyzov)
• Release Date: April 20, 2023 (in Russian cinemas)
• Director: Klim Shipenko
• Lead Actress: Yulia Peresild (playing a thoracic surgeon sent to the International Space Station)
• Space Filming Dates: October 5 to October 17, 2021 (12-day orbital visit aboard the ISS)
• Duration: 163 minutes

Last verified on 14-10-2026