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Great Moments In Science
From the ground breaking and life saving to the wacky and implausible, Dr Karl Kruszelnicki reveals some of the best moments in science.
4 days ago
Fake News has been around for thousands of years. You’ve probably heard of Nero, who was accused of playing the fiddle while Rome burned. But nowadays, the word gets around a lot faster. Thanks to the Internet and Social Media, a lie can travel around the world before the truth has even got out of bed. So fake news spreads quickly, and it takes more time to set straight than it took to tell the original lie.
Feb 22, 2021
Smell, part 2
More on how under-rated our sense of smell is – and how loss of smell can be an early indicator of COVID-19. In your DNA many of the genes associated with smell are located right next to a big bunch of genes that form your immune system. As a baseline, pre-COVID-19, about 1-5% of the general population had no sense of smell, and another 5-13% had a lessened sense of smell. But COVID-19 has bumped these percentages way up.
Feb 15, 2021
Smell, part 1
We see our human sense of smell as woefully inadequate compared to other animals – but awareness of our sense of smell has become more of a hot topic recently with the COVID-19 pandemic. A significant number of people who get the virus lose their sense of smell early on. It seems that a loss of smell can be a very good early sign of COVID-19 infection.
Feb 8, 2021
How to measure a building
In a classic scientific 'urban myth' a physics student is asked to measure the height of a building using a barometer. In 2020 French and Italian physicists wrote a paper called 61 Ways To Measure The Height Of A Building With A Smart Phone. This opened up a bunch of extra-modern measuring methods because of the smartphone's array of internal sensory gadgets.
Feb 1, 2021
Universe in a lifetime
Modern, pre-COVID, travel means it’s possible to trip around the world quite quickly. What if we had a super-advanced future rocket technology that could keep us accelerating at 1G. You could travel billions of light years - in less than a human lifetime!
Jan 25, 2021
The worst plane of WW2
During World War II a curious aircraft was built by the German air force. Its purpose was to combat Allied bombers, but not everything went to plan. What sounded like a ‘good idea at the time’ became, probably, the Worst Plane of World War II.
Jan 18, 2021
BP's Carbon Campaign
Why would the fossil fuel company BP promote the idea of reducing our individual 'carbon footprint'?
Jan 11, 2021
Climate change has begun displacing species, but just how many are on the move?
Jan 4, 2021
What was the mysterious Carrington Event of 1859? And why did it affect telegraph systems?
Dec 28, 2020
Is it true that our bodies would prefer the 'Paleo diet'?
Dec 21, 2020
What twisted trickery causes ribbons to curl?
Dec 14, 2020
Hot Dog Eating
What's the maximum number of hot dogs someone could eat in 10 minutes?
Dec 7, 2020
Where does the world's dust come from? And how does it constantly fill up our homes!?
Nov 30, 2020
Are discussions about your individual 'carbon footprint' really a distraction, shifting blame onto everyday citizens?
Nov 23, 2020
Would you eat a hamburger patty that was grown in a lab? What about fake meat that looks and tastes just like the real thing?
Nov 16, 2020
Tea Bag Saves Space Station
A cuppa tea can be a life-saver - sometimes, literally!
Nov 9, 2020
Understanding thyself, and taking the middle path, can lead to a much faster and calmer parking experience
Nov 2, 2020
The a-b-c of hepatitis - part 2
Could we really rid the world of Hepatitis C?
Oct 26, 2020
The a-b-c of hepatitis - part 1
Hepatitis C is one sneaky little disease, caused by an equally sneaky virus.
Oct 19, 2020
Beetroot wee and spag bol stains
What is it with red food and stains? So many things!
Oct 12, 2020
The 'tail' of the missing anus
Regrowing your tail is one thing - but what if you lose more than your tail in the first place?
Oct 5, 2020
When copper meets COVID
Copper is like kryptonite to COVID-19.
Sep 28, 2020
For black holes, matter doesn't size
They can be superemassive, but black holes still have no size.
Sep 21, 2020
Dead fish can swim
Why you should always read back copies of the Journal of Fluid Mechanics.
Sep 14, 2020
That's not a dinosaur - it's a flying catapult!
Sep 7, 2020
Fish boot camp
Why are scientists exercising fish ... with a coffee plunger?
Aug 31, 2020
The case of the disappearing bum - part 2
This creature has the only known case of an 'on-demand anus'
Aug 24, 2020
The case of the disappearing bum - part 1
The anus is highlight of animal evolution - but it's still full of surprises.
Mar 16, 2020
They've got brains smaller than a pinhead, but spiders can count!
Mar 9, 2020
Holy electric flying spiders!
Arachnophobes beware - flying B-grade horror spiders ahoy!
Mar 2, 2020
Putting Einstein to the test - part 2
The short story: he passed the test. Again.
Feb 24, 2020
Putting Einstein to the test - part one
There are very few places weird enough to test out Einstein's General Theory of Relativity.
Feb 17, 2020
The perfect coffee
At last - the real secret to the perfect espresso!
Feb 10, 2020
Australian bushfires - part 3
A lot of players had a role in our horrific 2019/2020 bushfire season. Luckily, El Nino was not one of them.
Feb 3, 2020
Australian bushfires - part 2
Are these bushfires really unprecedented and related to global warming?
Jan 27, 2020
Australian bushfires - part 1
The science behind our cataclysmic bushfire season
Jan 20, 2020
NASA's space pen
The truth behind NASA's 'billion dollar' space pen.
Jan 13, 2020
The flat earth myth myth
Medieval people thought the world was flat right? Wrong.
Jan 6, 2020
Spiderman has got nothing on geckos when it comes to sticking to walls.
Dec 30, 2019
Why do we sleep?
What our brains do when we clock off for the night...
Dec 23, 2019
5G hysteria is coming: part 2
If mobile phones don't cause cancer, why did two US studies show they do?
Dec 16, 2019
5G hysteria is coming ...
5G promises incredibly fast download speeds - but what about those cancer rumours?
Dec 9, 2019
Coffee or a nap? Actually, both.
Dec 2, 2019
Are you a mozzie magnet?
If you're pregnant, a bloke or a beer drinker, you're a prime target for mosquitos.
Nov 25, 2019
How do planes really fly?
If you're bursting to shout "Bernoulli!", think again ... Also, CONGRATULATIONS to Dr Karl from all of us at ABC Science! http://ab.co/2raH8Wj
Nov 18, 2019
Obesity has been on the rise since the mid-seventies. As have ultraprocessed foods. Co-inky-dink?
Nov 11, 2019
Is a vegan diet healthy?
Can you be truly healthy on a diet that excludes both meat and dairy?
Nov 4, 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.
Oct 28, 2019
What happens when you get winded?
Have you ever been winded? You suddenly lose the ability to do something you've done 15 times each minute of your life. But why?
Oct 21, 2019
Knife in the dishwasher - part two
At last - the answer to the burning question in kitchens the world over: does the dishwasher blunt your sharp knife?