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Dollar Signs

What is the origin of the US dollar symbol?

• 13 mins

Landmines

What is the best way to clear landmines? How accurate was Mayan astronomy?

• 13 mins

Radio Waves

Why does lightning sometimes look green? Why don't insects drown when it rains?

• 13 mins

Handshakes

Why and when did humans start shaking hands? Do humans only use 10% of their brains?

• 13 mins

Longest Place Name

Why does Britain compete as one team in the Olympics but as four teams in the World Cup?

• 13 mins

Pollution Free Engine

Is the ceremonial bugle call, the Last Post, unique to Britain?

• 13 mins

The Big Bang

What existed before the Big Bang? What caused apes to mutate into Homo sapiens?

• 13 mins

The Cuckoo

How do cuckoos learn to sing? Can water-damaged books be restored?

• 13 mins

Australian Maoris

Why didn't Maoris go to Australia? What are the origins of the Rolls Royce flying lady?

• 13 mins

Snoring

Why does the British 拢2 coin have an inscription about giants?

• 13 mins

Nuclear Weapons

Are India and Pakistan bluffing about having nuclear weapons?

• 13 mins

The MV Stirling Castle

What is the meaning and origin of the phrase "choc-a-bloc"?

• 13 mins

The Mysteries of the Titanic

Why didn't nearby ships come to the aid of the Titanic?

• 13 mins

Cricket or Baseball?

Why, as English speaking nations, don't America and Canada play cricket?

• 13 mins

Satellites and the Ozone Layer

Does sending rockets and satellites into space add to the depletion of the ozone layer?

• 13 mins

Emergency Hovercrafts

Why aren't hovercrafts used to provide relief supplies after hurricanes?

• 13 mins

Round the World by Hot Air Balloon

Why have all attempts to fly around the world in a hot air balloon ended in failure?

• 13 mins

Asteroid Threat

Will the earth be one day hit by an asteroid with disastrous effect?

• 13 mins