How do noise-canceling earbuds … cancel noise? It seems simple, but it’s super high-tech. Watch this video to see how layers of algorithms work together to figure out sounds that need to be dropped.
Home security 101: Where to put cameras

When it comes to home security, camera placement is everything. Tech gadgets can be finicky, so their location can make a difference. For example, here are the best places to put your router for better internet speeds.
When setting up security cameras, a little forethought goes a long way. If you don’t think about where to place indoor and outdoor cameras, your security system might not do its job correctly.
If you want to make the most of your security system, bookmark this page to remember where to place home security cameras.
1. Doors and windows on the ground floor
Sure, some burglars are athletic enough to pull a Spiderman and come in through the second story. But let’s be honest: Most people want to break in easily. They want to go into your house the same way you do — through the ground floor.
That’s why you should install cameras on your ground-level doors. Set up cameras inside and outside. This way, you can see their face clearly as they walk up to your door and see everything they do once they break in.
Don’t forget the side doors. You may think someone won’t sneak into your backyard or crawl through your bushes to get to the sides of your home. Don’t underestimate the persistence of burglars!
2. Place them high up
The worst place you can put a camera is on the ground. You might step on it, your dog might shower it (if you know what I mean), and it doesn’t record footage that would help you catch a burglar.
Positioning cameras up high is ideal. Your camera will be able to get the whole picture. Having cameras eight to 10 feet off the ground means you’re more likely to see a burglar’s entire body, which can help police narrow the list of suspects.
This way, your security cameras can cover the most ground. They can see the entire room, giving you a clear picture of anything in your home. Plus, placing security cams up high makes it harder for burglars to mess with them.
3. Set up your camera in the corner of the room
How noise-canceling earbuds work
Disney unvails Groot robot
A roving baby Groot robot is being tested at Disneyland in California. The little bot can apparently walk, dance and say, “I am Groot,” to guests. Watch out Pinocchio, there’s a “real boy” in town.
Remember Clippy? Here's the man who created it
In the ’90s, an iconic character in Microsoft Office programs named Clippy was created. This helpful little anthropomorphic paper clip could teach you little tricks to help you use the programs better. But the story behind the character is fascinating.
Cyberscams unleashed, Amazon Echo celeb exodus & Georgia's nude ID shocker
Plus, turn it off and on again? Here’s why sometimes a reboot is the best fix for your tech. Let your creativity flow with personalized emoji creations. Director-approved TV setting, and professional wiffle ball is a homerun online.
Creating fine art using Microsoft Excel
Tatsuo Horiuchi is a fantastic artist. But you’d never guess his medium — it’s Microsoft Excel. Using the program’s vector tools, he creates large landscapes of Japan. Amazing stuff!
A magician helps shelter dogs find homes
Feeling down? I’ve got just the thing: Puppies! Celebrity magician John Stressel doesn’t just use his gifts of illusion to make money. He takes his act on the road, to St. Hubert’s Animal Welfare Center in New Jersey. He makes toys and treats disappear, and the dogs go nuts for it. Their reactions are so cute, it helps them get adopted.
Watch a paralyzed man walk again
A man paralyzed in a cycling accident is walking again, thanks to a chip that reads his brain waves and stimulates his spine. After a decade, he can stand, climb stairs and walk with a little help. Amazing!
Stealing a car using only a photo
Maybe you’ve heard that you should never post a picture of your car or house key online because someone can duplicate it just from the pic. Myth or reality? Spoiler: Yes, it’s true! Watch this vid to see how it works.
The strange history of Clip Art
Throughout the ’90s and early 2000s, Clip Art was seemingly everywhere. Those little pre-made images were included in practically every program. Why do we not use it much anymore, and how did it become so popular?
First 'livestream' of Mars
The European Space Agency marks 20 years of the Mars Express with a live look at what’s going down on the Red Planet. It takes up to 22 minutes for us to get “live” pictures of Mars down here on Earth, so not technically a livestream, but still pretty dang cool.
If historical figures had smartphones and social media ...
Just love this video. It’s a compilation of famous historical figures taking selfies and posting them on social. It’s amazing, really.
Amazing inventions that changed the world
From the seatbelt to flushable toilets, there are a ton of inventions that have changed the world. But these might be some of the biggest game-changers of all time. I’m sure some of these will surprise you.
Creating a robot that can ‘handwrite’ letters
Handwriting hundreds of letters can be a pain, whether for a wedding, thank you notes or anything else. But what if there were a robot that could write them for you and make them look so authentic no one would know? Would you try it?
Surgeon General's social media warning, Roku's hidden menu & Amazon palm scanner
Plus, step into an Amazon delivery mystery — a woman’s tale of dozens of packages meant for a stranger. Also, say goodbye to flat social media photos with some great hacks. A heartwarming TikTok story, HBO’s latest app and secrets to making a stellar online dating profile.
The unsurprisingly silly history of Silly Putty
Unless you grew up under a rock, you have heard of Silly Putty. It’s the oh-so-bendable and stretchable goo that every kid loves to play with. But this classic toy’s history probably isn’t what you think.
What makes movie punches look realistic?
Have you ever watched a really good action movie and thought, “Wow, it looks like they are really punching each other.” Well, tons of secret Hollywood tricks make it seem genuine. And sometimes actors actually make contact.
Creating a ball that's impossible to hit
Wiffle Ball is an entertaining game many people remember playing when they were kids. But what if a ball was designed that is impossible to hit? That’s exactly what this popular YouTuber did, and it’s pretty amazing.
Classic sounds kids of today probably have never heard
Do you remember the distinctive sound a dial-up modem made in the early days of the internet? Those beeps and boops are no longer common, and that’s just one noise kids today will never hear.
The fastest maze-solving competition on Earth
You can find a maze on the back of cereal boxes, in kids’ magazines and even in large fields of corn. But what if we tasked robots with solving them? They can do it quickly, and there is even a worldwide competition to see who can create the robot that does it the fastest.