Dear Lifehacker, I know you've offered tips on beating the heat in the past but this week takes things to another level: the temperatures are so high, especially in Sydney, you can fry an egg on the bonnet of your car in the early morning already. How can I cope with this stupidly hot weather?

It’s normal to feel hot, sweaty and uncomfortable in warm weather, but what’s the best way to cool down? To answer this question, we first need to look at how the body maintains stable internal (core) temperature.

The Australia Bureau of Meteorology's heatwave service is working overtime as the country braces for temperatures of up to 47 degrees Celsius over the weekend. Preparation is key, so here's some practical tips on how to deal with the heat, from experts (and us).

It's going to be a scorcher this week. Parts of Australia's south and east are tipped to be over 40 degrees in the coming days. If you're an business owner or manager, you should consider the wellbeing of your staff and the reliability of any work equipment during a heatwave. Being prepared is vital and we have some tips to help companies get ready for soaring temperatures.

Brief news items of note for Lifehacker readers, including: Star Wars explained in one handy chart, Tesla Model S becomes fastest car in the world, inside the "horrifying" three-day heatwave coming to Australia's east coast.

This February, Australia has been beset by record heatwaves and the pain is set to continue in the days to come. Here's how to keep your home, car, pets and body as cool as possible without murdering your electricity bill in the process.

Whether you just don't have air conditioning or want to save money on energy, there are lots of ways to keep cool as the mercury rises. Here are some good ones.

DIY air conditioners may seem like a cheap way to beat the heat, but they aren't perfect. This video puts two homemade versions to the test and compares them to real AC units.

The weather's getting warmer across much of Australia, and there's no immediate change in sight. Ensure you stay cool with our comprehensive roundup of heat-beating tips, covering everything from how to use air conditioning more effectively to what to cook that won't overheat you and how to make the most of your beach time.

The scorching summer heat is hard on our bodies, our moods, and our electric bills. Don't let the temperature get you down, though. These ten tips will help you keep cool even if it feels like the sun is out to get you.

Nobody likes being stuck inside a hot car -- it can leave you feeling suffocated, dehydrated and uncomfortably sticky in a matter of seconds. While most vehicles now come equipped with air conditioning, it can still take a tortuously long time to expel all that hot air; especially if you're sitting in the back seat. These tricks from the Lifehacker archives will dramatically decrease the amount of time it takes to cool your car's interior.

The heat can make your usual workout a lot more difficult. It also puts you at risk of heatstroke if you're not careful. If you want to get your sweat on when it's burning up outside, adjusting your intervals can make it a little easier and safer.

Dear Lifehacker, The hot summer weather is really dragging me down at work. I'm finding it harder to get things done and stay motivated, when all I really feel like doing is leaving work early and relaxing at the pool. Is there any cure for the summertime slump?

Hey Lifehacker, Why is the fastest speed on my ceiling fan "1", while the slowest is "5"? Shouldn't it be the other way round? What gives?

Hi Lifehacker, I have always been a hot, sweaty sleeper and my temperature is warmer than a lot of other people. I'm 175cm and 73kg, which I don't think is overweight enough to warrant the cause. What can I do to reduce my body temperature?

Several Australian cities, such as Adelaide and Perth, have greeted 2015 with scorching weather as summer hits its stride -- the kind of conditions that leave us crying out for an air conditioner, rather than dreaming of barbeques and beach trips.

If you plan on spending a lot of time outside this weekend, it's good to keep an eye out for heat-related illness. The New York Times describes what to watch out for.

There's nothing like a BBQ in your backyard once summer rolls around -- but it does get hot out there. To keep things cool, set up a DIY water misting rack on the cheap.

Running air conditioning can be very expensive, but you still need to cool down at night so you can sleep comfortably. Real Simple notes that a fan blowing air out of your room is better than one blowing in.