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Technology

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How fast is the Large Hadron Collider?

The Large Hadron Collider (LHC) uses an array of 9,300 supercooled electromagnets to guide and accelerate particles – namely protons, around the 27km underground ring at CERN in Geneva, up to speeds extremely close to that of light. 

At their fastest, these particles travel at around 299.8 million metres per second completing 11,245 laps of this ring every second. This is equivalent to travelling around the circumference of the Earth seven and a half times in one second.

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Technology

When were radios first fitted in cars?

In 1924, Kelly's Motors in NSW, Australia, installed its first car radio.

In 1930, the Galvin Corporation introduced one of the first commercial car radios, the Motorola model 5T71, which sold for between $110 and $130 (2009: $1,700) and could be installed in most popular automobiles.

Vehicle audio - Wikipedia

en.m.wikipedia.org

What material is the Statue of Liberty made from?

The Statue of Liberty is 91.5 metres tall (including its base), and stands on an island in New York Harbour. 

The statue itself, without its pedestal, weighs almost 201 tons. 

Its inner framework consisted originally of a skeleton of iron rods joined to four wrought-iron posts. The iron rods have now been replaced with stainless steel. The outer skin is made from 300 overlapping copper plates.

Extra info: The Statue of Liberty was a gift from France to the people of the United States of America. It was dedicated in 1886.

Statue of Liberty

engineering.purdue.edu

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