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Did Nasa Create Invisible Braces

A company working with NASA invented the translucent ceramic that became the critical component of the first “invisible” dental braces, which went on to become one of the best-selling orthodontic products of all time. Who created invisible braces? The man who created Invisalign wasn’t a dentist at all! Zia Chishti… 

Did Nasa Invent Smoke Detectors

Further, NASA did not invent the smoke detector. NASA’s connection to the modern smoke detector is that it made one with adjustable sensitivity as part of the Skylab project. The device was made commercially available by Honeywell. NASA’s connection to the modern smoke detector is that it made one with… 

Did Native Americans Build Stone

Since Europeans generally did not consider the Indians in what is now the United States to be civilized, it was assumed that they didn’t use stone for building and that they did not create monumental public architecture. However, in many parts of North America, Indians had been building with stone… 

Did Molly Make Harry A Sweater

Every Christmas, Molly Weasley knitted new Christmas jumpers (US “sweaters”) for her children and Harry Potter, often with their initials on them. Ron’s sweater was usually maroon – a colour he dislikes for some unknown reason (PS12). “Harry’s is better than ours, though …She obviously makes more of an effort… 

Did Mongols Ever Use Guns

Their principal enemies at the period, the Mongols, did not use firearms. Therefore, even if Chinese firearms were rather primitive, they were clearly greatly superior to the weapons of their enemies. A famous Mongol general named Bayan led the campaign, commanding an army of two hundred thousand, most of whom… 

Did Mongols Invade Tsushima

The Yuan invasion forces set off from Happo (合浦,Modern day Masan), Korea on 2 November 1274 (October 5 in the lunar calendar). Two days later they began landing on Tsushima Island. The principal landing was made at Komoda beach near Sasuura, on the northwestern tip of the southern island. While…