This was one of the first commercially available mobile phones—it cost about £9000 in today's money, and had a battery life of 30 minutes talk time. In his 1985 Christmas Lectures, David Pye demonstrated this brand-new technology of the time. Watch the full series here: rigb.org/christmas-lectures/watch-royal-institution-christmas-lectures-archive This year marks the 200th anniversary of the Christmas Lectures. Stay with us as we share our favourite bits from the archives. #Discover200 | Royal I

3.6K views · 55 reactions | At this festive time of year, BBC Archive brings you the ghost of Christmas Lectures past. Go science! This year's lectures end today. | BBC Archive | Facebook

8.9K views · 168 reactions | Did you enjoy the Christmas Lectures? Maybe you can help us find the #MissingXmasLectures!  Your attic could be hiding some ‘national treasures from a golden age of broadcasting’, as described by Sir David Attenborough and other past Christmas Lecturers. Find out more: rigb.org/christmas-lectures/missing-lectures | Royal Institution of Great Britain | Facebook

8.5K views · 255 reactions | Happy birthday, Alessandro Volta!  Considering he experimented with electricity by shocking his own eyeballs, we hope he was a bit more gentle with himself when it came to extinguishing birthday candles. | Royal Institution of Great Britain | Facebook

1.8K views · 11 reactions | From the French Alps to the Royal...

Discover the evolution of explosive chemical experiments, with the maestro of chemistry Andrew Szydlo. Go on a journey with Andrew's dazzling demonstrations and experiments, interspersed with anecdotes from his life to show a glimpse behind the curtain of this enigmatic man. -- Safety disclaimer: Andrew Szydlo is an expert, trained chemist who has performed these experiments hundreds of times. He has chosen them carefully to fit the Ri Theatre, and has assessed all risks in advance. Please do no