Covid-19 conspiracy theory isn’t new – think Apollo

These days, as endless conspiracy theories about Covid-19 flow through my social media feed, I keep thinking of their grandparent, the Apollo moon hoax conspiracy. There are some surprising similarities. Most of the claims today are to do with Covid-19, which (if we are to believe the conspirators) is a fake virus promoted by the … More Covid-19 conspiracy theory isn’t new – think Apollo

Why burning hydrogen won’t reduce global pollution any time soon

It would be nice to think that hydrogen could solve the world’s energy problems. It’s a great fuel: it burns with oxygen to produce heat and water. No by-products. No pollution other than the waste heat. That heat, itself, might be a problem, given enough time – but it’s far less of an evil in … More Why burning hydrogen won’t reduce global pollution any time soon

The science behind the awesome black hole photograph

It’s been a hot week for science. Thanks to the Event Horizon Telescope, an algorithm created by 29-year old PhD graduate Katie Bouman, and a lot of hard work, humanity got its first photo of a black hole – M87 in the galaxy Messier 87, some 55 million light-years away. It wasn’t made with visible … More The science behind the awesome black hole photograph

Why yes, it’s proof of time travel, or not

Here’s a conundrum for you. Back in 1860, Austrian artist Ferdinand Georg Waldmüller (1793-1865) worked up this little scene.  A woman, walking along in a pose very familiar to us today, is about to be confronted by a suitor bearing a flower. The painting was titled ‘Die Erwartete’ (‘The Expected’). So was Herr Waldmüller a … More Why yes, it’s proof of time travel, or not