AASHO Road Test tractor-trailer road damage 7800 times

One tractor-trailer was estimated to cause far more road damage

7,800×

Under the AASHO Road Test relationship, an 80,000-pound tractor-trailer with specified axle loads was estimated to cause 7,800 times as much road damage as a passenger vehicle carrying 2,000 pounds on each axle.

Electricity can release some glued parts

Some adhesives are designed to come unstuck when an electric current or field is applied. This lets bonded parts be separated without damaging them or relying on heat.

A British air raid accidentally bombed a Copenhagen school

123 civilians killed

In March 1945, British aircraft attacked the Gestapo headquarters in Copenhagen. One plane crashed near a school, creating smoke that confused aircraft following behind it. Several crews mistakenly bombed the school instead. The operation killed 123 civilians, including 87 children, even as it struck the intended German target.

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AASHO Road Test tractor-trailer road damage 7800 times

One tractor-trailer was estimated to cause far more road damage

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