Fact Directory

Explore the latest fascinating facts freshly added to our collection!

How long does an AA battery last?
Technology
Quality alkaline batteries have a storage life of around 10 years. More advanced chemistries such as... Read more
What are the most produced firearms in history?
Military
Here's a look at the top five most-produced firearms : Kalashnikov (AK-47)The AK-47 family is ... Read more
Why the Casio F91W is an Iconic Classic
Technology
The Casio F91W is an iconic watch released in 1989, worn by both terrorists and presidents and stood... Read more
What is the oldest military aircraft?
Aviation
The 1909 Wright Military Flyer was the world's first military aircraft, acquired by the U.S. Army fo... Read more
What Power Plug Does China Use?
Travel
China uses 3 main types of power socket outlets, Type A (US Style flat prong), Type C (2 round pins)... Read more
Why Do Data Centres Use So Much Water?
Technology
Data centres consume large amounts of water for cooling, mainly through evaporative cooling. This me... Read more
What should my car's tyre pressure be?
Automotive
Your car's tyre pressure should typically be between 31 and 35 PSI when the tyres are cold. For the ... Read more
What Is a "No-Salute Zone" in the Military?
Military
A "no-salute zone" or "no-salute area" is a designated space where military personnel are not requir... Read more
What Missile Was Used To Shoot Down J2-8243 (ERJ-190, 4K-AZ65)?
Aviation
Azerbaijan Airlines flight J2-8243 (ERJ-190, 4K-AZ65) crashed near Aktau Airport, Kazakhstan on Wedn... Read more
What Is the Solar Constant and why is it important?
Space
The solar constant is the total power radiated out into space by the Sun. Most of this radiatio... Read more