How come distilled water hasn’t replaced transformer oil as a high voltage insulator?
Pure distilled water is an excellent insulator with high dielectric strength that is greater than mineral oil, it is less expensive than oil and conducts heat better. However,…
What was the brightest stellar event ever recorded?
On April 17, in the year 1006, a new light suddenly appeared within what is now the constellation of Lupus. Observers from all over the world recorded the…
Why did Japan lose the Battle of the Coral Sea?
The Battle of the Coral Sea was the first of the five great naval aircraft carrier battles of the Pacific War. It was the first naval battle where…