Automatic kettle

Invented: 1955
Inventor: Peter Hobbs

The automatic kettle – one that switches itself off when the water reaches boiling point – was the brainchild of Peter Hobbs, one of the two founders of appliance company Russell Hobbs. At its heart was a simple piece of technology: the bimetallic strip which bent as the water boiled, breaking a circuit and switching off the kettle.

MODERN TORPEDO

Invented: 1866
Inventor: Robert Whitehead

It was British engineer Richard Whitehead who first designed a torpedo launched from a ship in an underwater tube, powered by compressed air and with an internal mechanism that adjusted itself to stay at a constant depth. The first ship to be sunk by his invention was the Turkish steamer Intibah in 1878, after being hit by a torpedo launched from a Russian warship.

GLIDER

Invented: 1804
Inventor: George Cayley

One of the greatest inventors in the field of aviation was Yorkshireman George Cayley. He was the first man to move away from the idea that a man-made flying machine must have wings that flapped like a bird’s, and the first-ever sustained manned glider flight was made in a craft of his design at Brompton Dale in 1853.

JET ENGINE

Invented: 1937
Inventor: Frank Whittle

24-year-old RAF fighter pilot Frank Whittle first patented a new kind of aircraft - the turbojet - in 1930, but his new design was so radical that the military wouldn’t fund it, nor would any manufacturers, until in 1937 he found a few private backers and in 1941 a 17-minute test flight took place at RAF Cranwell in Lincolnshire.

WIND-UP RADIO

Invented: 1991
Inventor: Trevor Baylis

In 1991, Trevor Baylis saw a television programme about Aids in Africa that said one way to stop its spread was for people to hear educational information on the radio. So Baylis desined one that needed no batteries, running off an internal generator powered by a mainspring wound by a hand crank. He was able to demonstrate it to Nelson Mandela and since then it’s been distributed all over Africa.

SAFETY BICYCLE

Invented: 1885
Inventor: John Kemp Starley

The bicycle as we know it today was originally developed as the “safety bicycle”, because other bikes at the time – including the penny-farthing – were extremely dangerous. The key to the new bicycle was the chain drive, which meant you could still go fast even though both wheels were the same size. For most people it was arguably the most liberating invention of all time.

CEMENT

Invented: 1824
Inventor: Joseph Aspdin

In 1824, Leeds bricklayer Joseph Aspdin invented and patented a method of making what he called Portland Cement – the type that’s most widely used today. The process involved burning limestone, mixing it with clay and burning it again; the burning produced a much stronger cement than just mixing limestone and clay. Aspdin called it “Portland” as he claimed the set mortar resembled the best limestone quarried from Portland in Dorset.

Дата добавления: 2015-11-16