Making liquid nitrogen is hard – in fact up until 150 years ago scientists doubted whether it was even possible to liquefy nitrogen. In 1823, At the royal institution in London, Michael Faraday first produced liquid chlorine, kind of accidentally by putting it under high pressure. He similarly liquefied ammonia. Continue reading
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Back to school in a BIG way
First, astronomers made history when they detected a gravitational wave from two black holes merging. Then it was two neutron stars. Now, astronomers believe they’ve detected a gravitational wave coming from another first-time discovery: a black hole swallowing a neutron star.
Source: Scientists may have detected a black hole devouring a neutron star | CBC News
Susanne Åkesson, Professor of Evolutionary Ecology at Lund University in Sweden, has been awarded the prestigious Ig Nobel Prize. The prize, which she shares with six other researchers from Hungary and Spain, was presented to them for their discovery that white horses aren’t particularly bothered by blood-sucking horse-flies. Continue reading
We might not have unified electrodynamics until 1865, but we’ve known light was a wave since the original double-slit experiment in 1801. Let’s talk about diffraction and wave interference.
When Natalia flips a switch, a huge explosion happens – watch and learn as she shows and explains why. Continue reading
Futurists predict that those who work in jobs that require lower education and lower skill sets have a higher chance to have their jobs lost or restructured while those that require greater education or are highly skilled will be less affected. There is a growing urgency now because the discussion has moved from the theoretical to the observable. Continue reading
When physics students first learn about Newton’s law and momentum, they get the impression that it’s all about mass. If that’s true, how can mass-less light have momentum? It’s because mass isn’t actually required.