In 2011, an MIT team unveiled a technique that reconstructs the equivalent of about a trillion frames per second. The footage shows a pulse of light crossing a bottle like a tiny ball of light. The trick: the experiment is repeated millions of times, each shot capturing a different slice of time, and the results are stitched together. At that rate, a speeding bullet would look frozen.
In 1843, inventor Alexander Bain patented a way to send images over telegraph wires using synchronized pendulums. By the 1860s, a commercial fax service was already linking cities. The telephone wasn't patented until 1876, more than three decades after that first fax patent. The fax is really a child of the telegraph age.
On 8 October 1958, in Stockholm, 43-year-old Arne Larsson received the very first implanted pacemaker. The device, designed by engineer Rune Elmqvist and implanted by surgeon Åke Senning, worked for only a few hours and had to be replaced. Larsson went on to receive more than twenty pacemakers in his lifetime. He died in 2001 aged 86, outliving both the engineer and the surgeon.