From the ground breaking and life saving to the wacky and implausible, Dr Karl Kruszelnicki reveals some of the best moments in science.
http://www.abc.net.au/radionational/programs/greatmomentsinscience/
Gesamtlänge aller Episoden: 2 days 6 hours 7 minutes
Black hole buddies
More on the almost-emptiness that is black holes. Because they're invisible, they're difficult to find—but sometimes get discovered because they give off X-rays.
Black hole basics
Even though it sounds totally crazy, astronomers are very confident that black holes exist. Our galazy is really old, it should carry at least 100 million black holes but we’ve found only a couple of dozen of them.
Fartology 101—common scents
There's really no 'genteel' way to say it, this week we're... passing wind. But even though it's totally natural, it can be embarrassing.
COVID-19—the petering pandemic
It used to be thought that a pathogen (or germ) and its host develop in a 'mutually benign relationship'—this was called the 'Law of Declining Virulence'. If the common cold killed us there would be less hosts and the virus would decrease. So the common cold virus mutated to become less lethal, and more common. The Law of Declining Virulence was debunked in the 1980s, and the pathogen/host relationship is actually pretty complicated.
Power steering kills steering
Power steering on a car involves various rods of steel moving relative to one another. How the rods connect is why mechanics are dealing with an unexpected problem.
DJ bats double the Doppler
Thanks to some fuzzy-looking photos, bat echolocation just got more amazing. This program was originally published on 3 September 2019
Brain freeze
Why do some people get headaches from eating ice-cream or drinking something very cold. This program was originally published on 19 February 2019
Bacteria of champions
It's not just their ability to run 42 kilometres that separates marathon runners from the rest of us. They've got a secret energy source in their gut. This program was originally published on 5 November 2019
The end of the internal combustion engine?
Combustion engines are marvels of engineering and power, but will they feature in the cars of the future? This program was originally published on 8 October 2019
Balloon popping
When a balloon pops, sometimes it leaves lots of small fragments of rubber, and sometimes it leaves just a couple of larger pieces. What's going on? This program was originally published on 14 May 2019