Scientific American, November 1, Advertisement A competition sponsored in by Scientific American asked for essays on the 10 greatest inventions. Inventions are most salient when we can see the historical changes they cause. In we might not appreciate the work of Nikola Tesla or Thomas Edison on a daily basis, as we are accustomed to electricity in all its forms, but we are very impressed by the societal changes caused by the Internet and the World Wide Web both of which run on alternating-current electricity, by the way. A century from now they might be curious as to what all the fuss was about.
Greek fire in ConstantinopleByzantine Empire: Greek fire, an incendiary weapon likely based on petroleum or naphthais invented by Kallinikos, a Lebanese Greek refugee from Baalbekas described by Theophanes.
Banknote in Tang Dynasty China: The banknote is first developed in China during the Tang and Song dynasties, starting in the 7th century. Its roots are in merchant receipts of deposit during the Tang Dynasty —as merchants and wholesalers desire to avoid the heavy bulk of copper coinage in large commercial transactions.
Porcelain in Tang Dynasty China: True porcelain is manufactured in northern China from roughly the beginning of the Tang Dynasty in the 7th century, while true porcelain was not manufactured in southern China until about years later, during the early 10th century.
Gunpowder in Tang Dynasty China: Gunpowder is, according to prevailing academic consensus, discovered in the 9th century by Chinese alchemists searching for an elixir of immortality.
University in Morocco  9th century: Numerical zero in Ancient India: The concept of zero as a number, and not merely a symbol for separation is attributed to India.
Fire lance in Song Dynasty Chinadeveloped in the 10th century with a tube of first bamboo and later on metal that shot a weak gunpowder blast of flame and shrapnel, its earliest depiction is a painting found at Dunhuang.
Fireworks in Song Dynasty China: Fireworks first appear in China during the Song Dynasty —in the early age of gunpowder. Fireworks could be purchased from market vendors; these were made of sticks of bamboo packed with gunpowder.What Are the 10 Greatest Inventions of Our Time?
Before you consider, here are a few opinions from Scientific American readers in on what makes a great invention. Essay on Computer – The Human’s Greatest Invention!
Man has made several inventions. Computer is one of them. The computer has begun to control so many critical functions that today man is excessively proud about his invention. Today, the computer plays an important role in our lives and we are completely dependent on him.
TIME's annual round-up of the best inventions making the world better, smarter and—in some cases—a little more fun.
The 25 Best Inventions of Subscribe. The Invention of Lying is a American fantasy romantic comedy film written and directed by Ricky Gervais and Matthew Robinson (in their directorial debuts).The film stars Gervais as the first human with the ability to lie in a world where people can only tell the truth.
The supporting cast features Jennifer Garner, Jonah Hill, Louis C.K., Rob Lowe, and Tina Fey. Hailed as the Thomas Edison and Henry Ford of Silicon Valley, Robert Noyce was a brilliant inventor, a leading entrepreneur, and a daring risk taker who piloted his own jets and skied mountains accessible only by helicopter.
Now, in The Man Behind the Microchip, Leslie Berlin captures not only this colorful individual but also the vibrant interplay of technology, business, money, politics, and. It’s an interesting coincidence, though, that compound interest and nuclear chain reactions are both examples of the same type of function in calculus, exponential growth.