To image the black hole in galaxy M87, unveiled in 2019, eight radio telescopes around the planet observed together, forming a virtual telescope the size of the Earth. They recorded about 5 petabytes of data, far too much to send over the internet. So more than half a tonne of hard drives was flown to the processing centres, some of them from Antarctica.
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.