How-To Geek

Giving a presentation, be it in front of the Board of Directors or a roomful of students, has come a long way from paper handouts and poster boards. This week we want to hear about your must-have presentation tools.

From punch cards to hard drives to cloud based storage, how we stash our data away has changed quite a bit in the last century.

It’s the Humble Indie Bundle time of year again; score six great games at a name-your-own-price including acclaimed action-RPG Torchlight.

Beloved video game characters of yesterday are perfect candidates for 3D printing with their simple and block-based sprite shapes. Read on to learn more about the process and mathematics of turning 2D sprites into 3D models.

Once your computer finishes the boot process and you’re firmly inside the operating system buzzing along, is there anything left for the BIOS to do?

We’ve seen magnetic cards and RFID cards used as keys before, but QR codes? Check out the video to see how a group of Cornell University students developed a visual key card.

Staying on top of security breaches and how they may or may not affect you is time consuming. Sentry, a new and free addition to the LastPass password management tool, automates the process and notifies you of breaches.

Unclear about how the various social media networks are used? This comic clears up any confusion… with bacon.

The e-ink display, network connectivity, and low-power consumption of Kindle ebook readers make them a perfect candidate for an infrequently refreshed high-visibility display–like a weather display. Read on to see how t...

If you want custom and unique backgrounds without having to code your own image-generating engine, Ablaze makes it simple (and fun) to create abstract images.

Flightradar24 is a real time flight tracking service that shows you where thousands of planes are at any given time. Whether you’re an aviation buff or just want to show a worried kid that mom’s flight is almost h...

Inside those cheap laser pointers you see in the grocery store checkout line there’s a handy little plastic lens that, when slapped on your phone’s camera, makes it easy to take macro photographs.

Earlier this week we asked you if you used a second screen while watching television or movies–such as a smartphone or tablet. Now we’re back to highlight how HTG readers are engaging (or disengaging) with their mobile devices.

If you’d like to enjoy 3D movies with passive polarized glasses for less than $50,000 (the average price of a passive 3D projector), this DIY setup brings the price down to a more accessible level.

You may have built a simple marble raceway out of construction toys like LEGO or K’Nex at some point in your life. No matter how grand a raceway it was, we can assure you it had nothing on this 40,000 piece room-sized monster.

Once a week we round up some of the great reader tips that come our way and share them with everyone. Today we’re looking at using the Kindle as a screen for the Raspberry Pi, custom iPod control modules, and an easy way to play the Six Degrees of Kevin Bacon.

What if the tale of the Mario Bros. and their exploits was told in the form of an action flick? Mario Warfare explores the gritty side of the battle for the Mushroom Kingdom.

It was only a matter of time before someone chained together dozens of Raspberry Pi boards into a serviceable super computer; read on to see how a team of Southampton scientists built a 64-core machine using them.

Scientists have long theorized that Mars once had an atmosphere and surface water–but where did it go? This video showcases one of their theories about Mars’ vanished water reserves.

Television watchers are no longer keeping their eyes continuously glued to the screen–increasingly smartphone, tablet, and laptop users have merged their mobile device and television time. Are you one of the second screen multi-taskers?

Need an excuse to log a few more hours playing Call of Duty or Medal of Honor? Scientists demonstrated improved vision in test subjects after daily doses of first-person shooter games.

From your phone charger to your instant messenger, competing standards abound. Here’s how the pile grows ever larger.

Have an old toy Fisher-Price record player your kids aren’t exactly enamored with? Now, thanks to the miracle of 3D printing, you can create new records for it.

If you’ve ever taken a peek in Task Manager while running Google Chrome, you may have been surprised to see that the number of chrome.exe entries radically exceeded the number of actual Chrome windows you had open. What’s the deal with all those processes?

If you’re looking for a super simple way to share files with friends and coworkers Jumpshare offers drag and drop file transfer with a powerful built in file viewer.