"Two Japanese nine-year-olds play the word game shiritori while SIMULTANEOUSLY adding 30 numbers flashed in 20 seconds. They are using the technique called 'anzan', which is to imagine an abacus in your head."
Henry Winkler wins his first emmy 40 years into his career
Biggie Smalls. Freestyling On a Brooklyn Street Corner at age 17
How a Hard Disk Drive Works (2016) An engineer demonstrates how a hard disk d...