A new study examining some of Leonardo da Vinci's sketches in the Codex Arundel reveals the artist calculated the earth's gravitational constant at a 97% accuracy rate.FierceAbin/Getty ImagesA portrait of Leonardo da Vinci, the famous 15th and 16th-century inventor and artist.
In 2017, California Institute of Technology professor Mory Gharib was searching the Codex Arundel, a collection of notes and sketches by Leonardo da Vinci dating from 1480 to 1518, for illustrations that he could share with his graduate students when he noticed a particularly intriguing sketch. Read More...
Blinded as a 3-year-old boy, Louis Braille went on to become a renowned French educator in the 19th century, developing the famous Braille system that’s still used today.API/Gamma-Rapho via Getty ImagesA portrait of educator and inventor Louis Braille.
Today, millions of people around the world use Braille to read and write. But before Braille, visually impaired people struggled to learn complicated systems that had major drawbacks. Until a 19th-century French teenager named Louis Braille changed everything. Read More...
The man reportedly felt like he was living the same day on repeat. Doctors say this "Groundhog Day Syndrome" is a rare neurological disorder that is often connected to Alzheimer's Disease. Colin Behrens/PixabayAn artistic rendition of the brain’s neurons firing.
A man in his 80s reportedly experienced a rare symptom of Alzheimer’s disease, one that makes a person feel like they are living in real-life Groundhog Day.
Doctors say the unidentified man suffers from an extreme case of Déjà Vécu, a feeling that new events are reoccurring and identical to past experiences. Read More...