How accurately is the Great Pyramid aligned?
The Great Pyramid's sides are aligned almost exactly with true north, south, east, and west, a stunning feat of precision for ancient engineers.
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- How fast do protons travel in the Large Hadron Collider?
“Protons in the Large Hadron Collider travel at more than 99.99% of the speed of light.”
Reference: CERN
More facts about speed.
More speed facts
How big is the Large Hadron Collider?
The Large Hadron Collider is a 27-kilometer ring.
What was the speed limit in 1865?
In 1865 the first speed limit was introduced in Britain - 2 mph in town and 4 mph in the country.