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.

With summer in full swing, you're probably trying to get the most you can out of your AC. If you want to maximise your AC's performance, don't close too many air vents and ruin your home's airflow.

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.

It may be tempting to crank the air-con up high and keep your house at sub-arctic temperatures until the weather outside finally cools down, but it's worth thinking about the impact that's going to have on your bill. There are plenty of ways you can cool your house in a more economical way -- or, if you can't bear turning off the air conditioner for a minute, we've collected a few tips so that you can use it more economically.

Picnicking on the beach is always a fun idea, but an Esky full of snacks can get warm in the sun. Keep your food and drinks cold a little longer by burying your Esky in the sand.

An immersion chiller cools hot liquids quickly by running cold water through a coiled copper pipe that's immersed in the liquid. You can make this DIY model to whatever size fits your needs.

Raijin is the supercomputer run by the National Computational Infrastructure (NCI), and used for a wide range of scientific research projects. Here's an inside look at the computing and cooling gear that drives it.

When you build a PC, your processor usually comes with a small cooler -- but people often recommend upgrading to a large aftermarket cooler for cooler, quieter operation. How much does it actually help? The folks at Linus Tech Tips put three coolers to the test to find out.

Everyone knows dust is bad for your PC, but it's hard to avoid. Apart from regular cleanings, the best way to avoid dust buildup is with a good fan filter. If you don't feel like spending money on them, though, just use some old pantyhose.

This is how you can tell Google has money to burn: it paints the cooling pipes in its data centres using the colours from its logo.

Entertainment cabinets are great for housing your media hardware, but those cupboards can get pretty hot. In this video, LinusTechTips shows us how to install custom cooling in your entertainment centre.

If you're in dire need of some way to cool down your laptop and don't want to spend the cash on a cooling pad, Instructables has a simple solution in the form of some overturned egg cartons.

Don't let the summer heat get you down. A smart strategy for using your windows can help you stay cooler when it's at least comfortable enough to crack open a window.

Hey Lifehacker, It has come time to flush out my PC water cooling, and it's also in need of some modifying. I've bought some fittings that should help my flow and get rid of some ridiculous loops I've created. But my question is this. How am I going to be able to do this? How am I going to get rid of ALL the water? Do I need to pull all the hardware out? And because the tubes go outside the case does that add to the degree of difficulty? Thanks, Cool Loops

Curse this heatwave! If your office is running the heater a little higher than you'd like, this DIY personal AC unit can keep you cool.

Old laptops running hot become a particular problem in summer. If you need a quick fix for an overheating machine, you can increase the airflow by propping the laptop up on four plastic bottle caps from larger soft drink bottles.

So, you've tried your best to get your noisy neighbours to not be quite so annoying, but nothing's worked (or you're not in a position to do anything about it). As a final option, you can try drowning out the noise with a simple desk fan by your bed, which, seeing as it's close to summer, will also cool you down.

So you've got a kickass computer, but it's also turning out to be a hotter computer, which explains it sometimes sounds like it is impersonating a jet engine, even in the depths of winter. If your computer's generating a bit too much heat and noise, here's how to give its cooling system an overhaul for cool, silent operation.

Water cooling is a great way to keep your computer super cool and super quiet, but it can cost a lot of money. Corsair's Hydro series makes water cooling easy with inexpensive, maintenance-free units that take just a few minutes to install.