Gallium, Scandium and Germanium were subsequently discovered, in 1875, 1879 and 1886 respectively.
That's what science does if you get it right, it allows you to predict.
With that longer-than usual-introduction here's some, more mundane but possibly more valuable, prediction stuff.
From 99% Invisible:
Four times every day, on radios all across United Kingdom, a BBC announcer begins reading from a seemingly indecipherable script. “And now the Shipping Forecast issued by the Met Office on behalf of the Maritime and Coastguard Agency,” says the voice over the wire. “Viking, North Utsire; southwesterly five to seven; occasionally gale eight; rain or showers; moderate or good, occasionally poor.” Cryptic and mesmerizing, this is the UK’s nautical weather report....MUCH MORE
The Shipping Forecast is “part of the culture here,” muses Charlie Connolly, author of Attention All Shipping: A Journey ‘Round the Shipping Forecast. “It’s a much loved institution. People regard it as poetry.” Connolly grew up listening to the forecast. Even now, as an adult, he sets his alarm so he can tune into the early morning forecast.
The story of this radio program starts (well before the BBC itself) in the 1850s with a man named Admiral Robert FitzRoy. He was the captain of the Beagle, the ship that brought Charles Darwin to the Galapagos.
FitzRoy had a long, sometimes controversial career, but later in his life he became fascinated with the study of weather prediction.
In FitzRoy’s time, lots of ships sank at sea due to weather. People were just beginning to understand the connection between air pressure and storms, which piqued the captain’s interest. So when he was appointed head of the nation’s new Meteorological Office, he poured all his energy into the study of air pressure. He had a barometer, and he would use it to try and figure out what was about to happen with the weather.
Then, one day in 1859, a ship called the Royal Charter was sailing from Australia to Liverpool. Many of the passengers on board were miners, returning home from the Australian gold mines. A big storm blew in and FitzRoy, who was sitting at home in London at the time, saw on his barometer that the pressure had dropped, but had no way to warn anyone. The Royal Charter sunk, and over 450 people drowned. FitzRoy was filled with guilt. He wished he could have done more to warn people, and decided to devote his life to saving lives at sea by predicting the weather.
Worried that people might associate his predictions with some kind of esoteric witchcraft or superstition, FitzRoy avoided the term prophecy in favor of forecast, and coined the phrase “weather forecast.” He delivered his forecasts by telegraph around the United Kingdom, where signal flags were hoisted in harbors to warn ships heading out to sea. Eventually his forecasts were published in the newspaper, and while they were often ridiculed by readers at the time, they were pretty accurate, and they became indispensable for sailors and fishermen....
If you follow the link you'll be coming up on one of the readers of The Shipping Forecast, Peter Jefferson, who worked for the BBC for four decades and who we last visited in: