LegendaryLife Profile: Al-Hassan Ibn al-Haytham

Al-Hassan Ibn al-Haytham is the first and greatest scientist to have ever lived!
A few weeks ago, I discovered that the roots of modern science came from Al-Hassan Ibn al-Haytham, yes, the first true scientist was a Muslim man! I find this guy very interesting for a number of reasons but most strikingly, how the existence of this important man was completely ignored throughout my elementary, secondary and university science classes who put the beginnings of science squarely from Europe! Astonishing!
Al-Hassan Ibn al-Haytham’s Early Years
Al-Hassan Ibn al-Haytham was born in Basra (modern day Iraqi city) in 965 which, at the time, was considered among the top cultural, educational and spiritual centers of the Middle East. New ideas were freely shared, people were free to travel as they pleased and unlike now, the region was relatively stable.
Al-Hassan Ibn al-Haytham’s Productive Years
Al-Hassan Ibn al-Haytham studied both academically and on his own throughout his life and also took several jobs including that of a civil servant. He was most likely well known for his knowledge in both religious and scientific circles at the time.
Al-Hassan Ibn al-Haytham and the river Nile
He was very confident in his ability to solve problems and, as the story goes, was summoned by the ruler of the Fatimid Caliphate to help regulate the river Nile in order to stop the annual floods that were occurring at the time. Al-Hassan Ibn al-Haytham took-on the job but later realized that although his vision was possible, the technologies and methods used at the time were completely inadequate to do the job properly. For fear of pissing off the Egyptian ruler, he acted insane which spared his life and was held under house arrest for over a decade… where he produced some of his most amazing work between 1011 to 1021. The details of this story are still in dispute but the work he produced during this time isn’t.
Al-Hassan Ibn al-Haytham final years
In 1038, Al-Hassan Ibn al-Haytham managed to be in Cairo (Egypt) where he probably studied and worked with several prestigious universities and libraries. During this time, he wrote many papers relating to diverse subjects, from Astronomy to Mathematics and Medicine to Optics. He then left for a trip to Muslim Spain, part of the modern day European Union.
Al-Hassan Ibn al-Haytham’s Death
This legendary man most likely died in Cairo, Egypt in 1039 at the age of 76.
Al-Hassan Ibn al-Haytham’s World
I wrote other articles regarding the BBC’s series “Science and Islam: The Language of Science” which will give you a clearer idea of the discoveries, times and ideas he was able to live through at the time.
- BBC’s Science and Islam: The Language of Science (Episode 1)
- BBC’s Science and Islam: The Empire of Reason (Episode 2)
- BBC’s Science and Islam: The Power of Doubt (Episode 3)
Al-Hassan Ibn al-Haytham’s Body of Work
In 1021, Al-Hassan Ibn al-Haytham “published” probably the third most influential book in the history of the world after the Koran and the Bible titled “Book of Optics”. Among many things, he showed demonstratable proof that:
- light travels in straight lines
- disproved an almost 1 000 year Greek theory that we see objects because of the light hitting them followed by our eye and not the other way around
- developed the concept behind the first pinhole camera
- described in detail how the eye actually is capable of seeing
- improved upon existing theories of motion, perception and light projection
- the relationship between density and altitude including atmospheric refraction
- developed very complex celestial mathematics to help create doubt that the universe rotates around the Earth
- relationships between mass and attraction using magnitude and gravity
- disproved the theory that the Moon was a light reflector, replacing it with one of light emission
- developed the foundations behind current theories of kinetics, inertia, friction and momentum
He also commented and expanded on a number of existing theories from medicine to mathematics and is credited with being among the first to use mathematics to prove his theories.
Al-Hassan Ibn al-Haytham Legacy
By all accounts, Al-Hassan Ibn al-Haytham was a very prolific writer and adventurer (in a scientific sense). He left a wealth of knowledge that is as applicable today as it was at his time. Based on the body of his work, he rightfully deserves a place above such scientific greats as Charles Darwin, Albert Einstein, Isaac Newton and even Leo Baekeland (inventor of plastic) who all used the foundations of his equations to produce their work. He is the father of the modern scientific theory and there isn’t a day that goes by that we don’t touch, see or use something whose roots lie in this greatest of men. The lives of countless people around the world were vastly improved due to his diligence and sacrifice, something that never should have been so easily dismissed.
The Bottom Line
The path of history is full of twists and turns.
Buzvia: Al-Hassan Ibn al-Haytham on Wikipedia, Al-Hassan Ibn al-Haytham researcher Bradley Steffens, BBC Article about Al-Hassan Ibn al-Haytham (which lead to me discovering him in the first place)


