Dr Karl: Need to Know
Dr Karl: Renewables and agriculture can coexist
Electricity and agriculture is not an ‘either/or situation’, argues Dr Karl.
Tim the Yowie Man
The eccentric Aussie bushranger you’ve never heard of
Ned Kelly, Ben Hall and Captain Thunderbolt – the criminal exploits of these notorious bushrangers are forever etched into our national psyche. But what about the Birdman of the Coorong?
Dr Karl: Need to Know
Dr Karl: ‘Nothing will convince the flat-Earthers’
In November 2023, SpaceX launched its second Starship rocket test flight. This was the heaviest, tallest and most powerful rocket ever built and – not unexpectedly – it didn’t work.
Tim the Yowie Man
The man who lived in a log
It’s the dream of every child who loves the outdoors – build a secret bush cubby, a retreat from the prying eyes of parents and an opportunity to let the imagination run wild in a make-believe world of fairies, goblins and other magical creatures.
Dr Karl: Need to Know
The Varroa mite is here to stay
After spreading through most of Earth’s honeybee populations, the parasite known as the Varroa mite (Varroa destructor) recently got a foothold in Australia and has begun devastating our own bees.
Space
Where did the Geminid meteors come from?
Every year, I receive a celestial birthday present. No, it’s not because of any secret insider connection with the universe, but a simple coincidence that on the day in question – 14 December – Earth ploughs through a swarm of dusty particles, which results in a shower of bright meteors.
Tim the Yowie Man
Settling squabbles over Australia’s deepest caves
School camps are great fun, aren’t they? They’re a chance for students to step away from the classroom, appreciate the outdoors and be physically challenged. However, you may think differently if you suffer from claustrophobia and were compelled to endure three days crawling through a labyrinth of dark chambers!
Dr Karl: Need to Know
What is an ocean avalanche?
Avalanches are terrifying things: they career down snow-covered mountains, smashing everything in their paths.
Dr Karl: Need to Know
Sniffing out Parkinson’s disease
We know of one (that’s correct, only one!) person able to smell Parkinson’s disease, before the symptoms became visible some 14 years later.
Tim the Yowie Man
Gravity hills can be explained by spirit levels, not spiritual forces
Gravity hills, spook hills, magnetic hills, mystery hills, or anti-gravity hills… whatever you choose to call them, there’s a simple explanation behind these national and global phenomena.