How Islamic inventors changed the
world
Paul
Vallely, The Independent
From coffee to cheques and the
three-course meal, the Muslim world has given us many innovations that we
take for granted in daily life. |
1 The story goes
that an Arab named Khalid was tending his goats in the Kaffa region of southern
2 The ancient
Greeks thought our eyes emitted rays, like a laser, which enabled us to see.
The first person to realise that light enters the eye, rather than leaving it,
was the 10th-century Muslim mathematician, astronomer and physicist Ibn
al-Haitham. He invented the first pin-hole camera after noticing the way light
came through a hole in window shutters. The smaller the hole, the better the
picture, he worked out, and set up the first Camera Obscura (from the Arab word
qamara for a dark or private room). He is also credited with being the first
man to shift physics from a philosophical activity to an experimental one.
3 A form of chess
was played in ancient
4 A thousand
years before the Wright brothers a Muslim poet, astronomer, musician and
engineer named Abbas ibn Firnas made several attempts to construct a flying
machine. In 852 he jumped from the minaret of the Grand Mosque in
5 Washing and
bathing are religious requirements for Muslims, which is perhaps why they
perfected the recipe for soap which we still use today. The ancient Egyptians
had soap of a kind, as did the Romans who used it more as a pomade. But it was
the Arabs who combined vegetable oils with sodium hydroxide and aromatics such
as thyme oil. One of the Crusaders' most striking characteristics, to Arab
nostrils, was that they did not wash. Shampoo was introduced to
6 Distillation,
the means of separating liquids through differences in their boiling points,
was invented around the year 800 by Islam's foremost scientist, Jabir ibn
Hayyan, who transformed alchemy into chemistry, inventing many of the basic
processes and apparatus still in use today - liquefaction, crystallization,
distillation, purification, oxidization, evaporation and filtration. As well as
discovering sulphuric and nitric acid, he invented the alembic still, giving
the world intense rosewater and other perfumes and alcoholic spirits (although
drinking them is haram, or forbidden, in Islam). Ibn Hayyan emphasized
systematic experimentation and was the founder of modern chemistry.
7 The crank-shaft
is a device which translates rotary into linear motion and is central to much
of the machinery in the modern world, not least the internal combustion engine.
One of the most important mechanical inventions in the history of humankind, it
was created by an ingenious Muslim engineer called al-Jazari to raise water for
irrigation. His 1206 Book of Knowledge of Ingenious Mechanical Devices shows he
also invented or refined the use of valves and pistons, devised some of the
first mechanical clocks driven by water and weights, and was the father of
robotics. Among his 50 other inventions was the combination lock.
8 Quilting is a
method of sewing or tying two layers of cloth with a layer of insulating
material in between. It is not clear whether it was invented in the Muslim
world or whether it was imported there from
9 The pointed
arch so characteristic of
10 Many modern
surgical instruments are of exactly the same design as those devised in the
10th century by a Muslim surgeon called al-Zahrawi. His scalpels, bone saws,
forceps, fine scissors for eye surgery and many of the 200 instruments he
devised are recognisable to a modern surgeon. It was he who discovered that
catgut used for internal stitches dissolves away naturally (a discovery he made
when his monkey ate his lute strings) and that it can be also used to make
medicine capsules. In the 13th century, another Muslim medic named Ibn Nafis
described the circulation of the blood, 300 years before William Harvey
discovered it. Muslims doctors also invented anesthetics of opium and alcohol
mixes and developed hollow needles to suck cataracts from eyes in a technique
still used today.
11 The windmill
was invented in 634 for a Persian caliph and was used to grind corn and draw up
water for irrigation. In the vast deserts of
12 The technique
of inoculation was not invented by Jenner and Pasteur but was devised in the
Muslim world and brought to
13 The fountain
pen was invented for the Sultan of Egypt in 953 after he demanded a pen which
would not stain his hands or clothes. It held ink in a reservoir and, as with
modern pens, fed ink to the nib by a combination of gravity and capillary
action.
14 The system of
numbering in use all round the world is probably Indian in origin but the style
of the numerals is Arabic and first appears in print in the work of the Muslim
mathematicians al-Khwarizmi and al-Kindi around 825. Algebra was named after
al-Khwarizmi's book, Al-Jabr wa-al-Muqabilah, much of whose contents are still
in use. The work of Muslim maths scholars was imported into
15 Ali ibn Nafi,
known by his nickname of Ziryab (Blackbird) came from Iraq to Cordoba in the
9th century and brought with him the concept of the three-course meal - soup,
followed by fish or meat, then fruit and nuts. He also introduced crystal
glasses (which had been invented after experiments with rock crystal by Abbas
ibn Firnas - see No 4).
16 Carpets were
regarded as part of
17 The modern
cheque comes from the Arabic saqq, a written vow to pay for goods when they
were delivered, to avoid money having to be transported across dangerous
terrain. In the 9th century, a Muslim businessman could cash a cheque in
18 By the 9th
century, many Muslim scholars took it for granted that the Earth was a sphere.
The proof, said astronomer Ibn Hazm, "is that the Sun is always vertical
to a particular spot on Earth". It was 500 years before that realization
dawned on Galileo. The calculations of Muslim astronomers were so accurate that
in the 9th century they reckoned the Earth's circumference to be 40,253.4km -
less than 200km out. The scholar al-Idrisi took a globe depicting the world to
the court of King Roger of
19 Though the
Chinese invented saltpeter gunpowder, and used it in their fireworks, it was
the Arabs who worked out that it could be purified using potassium nitrate for
military use. Muslim incendiary devices terrified the Crusaders. By the 15th
century they had invented both a rocket, which they called a "self-moving
and combusting egg", and a torpedo - a self-propelled pear-shaped bomb
with a spear at the front which impaled itself in enemy ships and then blew up.
20 Medieval
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