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Articles on Heat

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Magnets have mysterious powers – now shown to influence heat and sound. Magnet image via www.shutterstock.com.

Magnetic fields can control heat and sound

Sound waves are made of particles called phonons. New research shows they’re affected by magnetic fields, with researchers able to steer heat magnetically.
If you’re not regularly active, extreme exercise and exercise in extreme heat is unwise. lzf/Shutterstock

Health Check: how to exercise safely in the heat

Exercise alone can be hard, but exercising in the heat is a whole lot harder. Put simply, this is due to the balance between how much heat the body generates and how much it is capable of losing.
Well, maybe it’s not quite this electrifying, but the prototype is pretty cool. Florian F. (Flowtography)/Flickr

Flat battery? New prototype turns waste heat into electricity

Picture a device that can produce electricity using nothing but the ambient heat around it. Thanks to research published in the Proceedings of the National Academy of Science today, this scenario is a…
Heat relief: on hot days, flying foxes - like this grey-headed flying fox - dip their bellies into water to cool down. Nick Edards

Killer climate: tens of thousands of flying foxes dead in a day

This summer we have seen one of the most dramatic animal die-offs ever recorded in Australia: at least 45,500 flying foxes dead on just one extremely hot day in southeast Queensland, according to our new…
Deep underground the coal is off - but the heat is still on. Ashley Dace

Underground water heat will aid bid to hit renewable targets

Solar and wind power rightly receive a lot of attention as we struggle to ramp up renewable electricity and move away from fossil fuels. But in a damp, blustery island such as ours, generating heat is…
Keeping the heat in the places you want it is the most important part of any heating plan. Wunkai/Flickr

How to heat your house efficiently

Winter is coming, and all across the southern states eyes turn to energy bills and minds towards how to make them smaller. What is the most efficient way to heat your house? As with anything to do with…
You’re no more likely to lose heat from your head than other parts of your body – except your hands and feet. Taylor Mackenzie

Monday’s medical myth: you lose most heat through your head

As the weather starts to cool down and winter clothes enter rotation in our wardrobes, some peculiar combinations emerge: shorts and scarves; thongs and jackets; T-shirts and beanies. The last is often…
The 2003 European heat wave caused 80,000 deaths at temperatures Australians usually experience in a regular summer. AAP

Could we acclimatise to the hotter summers to come?

Acclimatising to heat is a tough gig. Since 1970, central Australian regions have warmed 1.2ᵒC and as the world continues to get warmer, increasingly common and increasingly intense heat waves will make…
It’s easy to find the human angle in heatwave stories, but climate change has them too. Jocelyn Durston

Media is missing climate in heatwave story

As Australia stares at “a once-in-20 or 30-year heatwave”, with temperatures over 40 degrees, it is likely that more extreme weather events similar to this are in store for us. The probability of this…
A total fire ban is in place across NSW and the ACT as temperatures soar. AAP Image/Twitter

As climate warms, heat waves outpace cold snaps three to one

Heatwaves like the one sweeping Australia today will become more common as the globe warms, with record high temperatures already outpacing record lows by a ratio of three to one, experts said today. Temperatures…
If any difference exists at all, it’s imperceptibly small, at less than 0.2°C. Ms Cafe

Monday’s medical myth: men are hotter than women

Holding a body close to you, it’s easy to appreciate the warmth a human body can generate. Humans are “warm-blooded” animals. We’re able to effectively maintain a stable internal temperature, even on cold…
When it comes to weather, scientists and the media have different understandings of risk. Ameel Khan

Spinning uncertainty? The IPCC extreme weather report and the media

The “reasonable person” would agree that disaster risk is best avoided. Under a changing climate, how exposed people are to risk and how socially and physically vulnerable they are affects how often disasters…
You’re not imagining it: hot days are hotter and there are more of them. AAP

Record heatwaves not just a lot of hot air

Are the tornadoes in the USA, or the floods in Queensland and Victoria, or the record drought in southwest Australia, or the Russian heatwave of last year or western Europe in 2003, or Black Saturday…

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