How do 3D printers work?
Not long ago, the idea of printing three-dimensional objects at home might have sounded like a thing out of The Jetsons. So how do 3D printers work, anyway?
What is a keyboard’s CTRL key used for?
It’s handy on occasion – but have you ever wondered: What is the point of the CTRL key taking up button space on your keyboard?
Where can I find free fonts?
Whether you’re looking to add a little style to your blog or website, or want to make your presentation stand out from the pack, a new free font may be just what you need. A different typeface can change the entire tone of a graphic or document — and even just experimenting with different font styles…
What is the difference between Blu-rays and DVDs?
Despite how they look, Blu-rays and DVDs are different kinds of technology. Here are the basic differences between the two spinning silvery circles that bring movies and TV shows to life.
On a camera’s manual settings, what are f-stops?
If you just got a new DSLR camera, you may be unclear on what all these settings are for – in particular, the dial for f-stops. What are f-stops?
What is bokeh photography?
What is the photographic effect bokeh exactly – and how can you get it with your camera? Find out here.
What is the difference between AM and FM radio?
What is the difference between AM and FM radio – aside from the obvious programming differences with talk radio versus music?
How can you fix a household appliance?
When you need to fix a household appliance that has quit, here’s where you can look for repair help to get everything in working order again.
How do green screens work?
How do green screens work? You know, when they film people against a plain background, then magically make a whole other world appear behind them. Find out!
What is a solar flare?
What is a solar flare, do they really cause problems here on Earth – and should you worry? Learn more here.
How do airport metal detectors work?
How do airport and concert venue metal detectors work? Somehow, a seemingly plain rectangular doorway can figure out if I left my keys in my pocket.
How can you become an astronaut?
Many women and men have realized their dreams of flying in space. They all began by submitting an application to become an astronaut. Here’s how maybe even you could become an astronaut!
Why are circuit boards green?
Inside almost every electronic device – from your computer’s motherboard to a remote control – seems to have a green circuit board inside. Why that color?