Right now, invisible signals are flying through the air all around you. Massive radio waves carry information between computers, GPS systems, cell phones, and more. And the sky is flooded with interference from routers, satellites, and, of course, people flying who haven’t put their phones on airplane mode. So, what exactly does airplane mode do? Lindsay DeMarchi explains the setting's importance.

Uploaded to YouTube by TED-Ed.

MOTHER 2 meets Charlie brown in this animation where Ness and Paula get bullied by one of the weakest enemies in the game!

Uploaded to YouTube by russmarrs2.

The video is a comparison of the acting of Eric Stoltz (the original actor who played Marty McFly) and Michael J. Fox (the Marty McFly we know from the classic film).

Robert Zemeckis and Bob Gale had planned for Michael J. Fox to play protagonist "Marty McFly" in the first Back to the Future film. But Fox was already starring in the famous sitcom, "Family Ties". Gary David Goldberg, the producer of the sitcom didn't allow Fox to be casted in "Back to the Future" because it would restrict his time to film on "Family Ties". As a result they got Eric Stoltz (best known for playing Rocky Dennis in the 1985 film Mask) to play Marty.

After filming for several weeks, Zemeckis was unsatisfied with the result of the film, because Eric Stoltz was a method actor and didn't get the humour that was written in the script. They fired Stoltz, and Goldberg allowed Fox to film "Back to the Future". Michael J. Fox worked at "Family Ties" during the day, and worked on "Back to the Future" at night. His only opportunities to film the movie during the day was during weekends. Michael J. Fox worked on average 20 hours per day.

In 2010, for the 25th Anniversary celebration of Back to the Future, a documentary was made releasing previously unreleased footage of Stoltz as Marty McFly, only showing a minimal amount of film. Photos of Eric Stoltz as Marty McFly were released at www.bttf.com (now closed).

Uploaded to YouTube by I'm Just A Theory!.

Why don't computers use base 3?

Uploaded to YouTube by Basics Explained, H3Vtux.

Is anyone else hosting Christmas this year?

Uploaded to YouTube by Randy Feltface.

This video takes you on a trip on a quiet European branchline, somewhere in the first half of the 20th century.

These short, usually single track routes connect rural areas to the mainline train network, and provided an essential transportation link for these otherwise isolated towns.

As competition from road traffic increased however, lines like these struggled to remain profitable, and many were abandoned or torn up.

For the moment, this particular line is still going, running a few mixed passenger and freight trains each day.

The Brickstone’s sparkling water company, who use the line to transport their sparkling mineral water from its source to the bottling plant a few miles down the line, are a huge contributor to the lines survival.

The lines long-term future of the line however, remains uncertain…

Uploaded to YouTube by Tiesproductions/

Ever felt pointless? Or like your life has little meaning? Well first off I'm sorry to hear that, but second, spare a thought for the Puchicalator, the world's shortest escalator, based in Kawasaki, just outside Tokyo, Japan.

At just 83.4 cm tall, it takes you from the ground floor to… well, still the ground floor. Officially crowned by Guinness World Records as the shortest escalator on Earth, the Puchicalator lives inside More’s Department Store, and has been heroically carrying people a distance you could walk in three steps for over 30 years. Why does it exist? I went to Japan to find out.

Uploaded to YouTube by What On Earth Is This?.

Uploaded to YouTube by Hidden Saves.

The moonlight towers of Austin, Texas, are the last urban municipal lighting towers in the world: because before every street was wired to the grid, how else would you light up a city?

Uploaded to YouTube by Tom Scott.

Ever wondered why the Boeing 747 — the Queen of the Skies — has that strange hump at the front? It wasn’t built for looks. In fact, Boeing never designed it for passengers at all.

In this video, we uncover the fascinating story of how the hump was born for cargo, transformed into a luxury lounge in the sky, and became one of the most iconic designs in aviation history. From Pan Am’s first 747 flight, to the aircraft’s role as Air Force One and even NASA’s Space Shuttle carrier — the story of the hump is a story of aviation itself.

Uploaded to YouTube by Beyond Sky.

Some PC games in the late 90s and early 2000s had a particular look that I think stands the test of time. Join me as I investigate why that is and take a look at it's legacy.

Uploaded to YouTube by GameTalesHQ.

Episode 3 of Pokearth. Spheal are curious little creatures that like to explore. But the freezing temperatures will pose a threat if they're not careful...

Uploaded to YouTube by EnlargedKai.

Where do guests sit at the table in your country? What utensils do you use, and how do you eat? Despite being close neighbors, Korea, Japan, and China each have unique dining customs. In this video, I’ll guide you through the Dining Etiquette of these countries.

Uploaded to YouTube by Big tLee.

"See you in a minute" yeah, about that...

Uploaded to YouTube by iamElectro.

The rail operator's travel card was revolutionary in 2001. But JR East's president says the 'Suica' system will have to offer more as it faces competition from other payment apps.

Uploaded to YouTube by NHK WORLD-JAPAN.

During his first day at a new job, a man discovers that he already has a close connection with his black coworkers.

Uploaded to YouTube by Key & Peele.

Dive into the compelling story of Japan's ambitious goals during World War II in this short historical documentary. Explore how a resource-hungry island nation (Japan), transformed into a formidable military power, driven by ideology, economics, and nationalism.

Witness the dramatic events, from the attack on Pearl Harbor to the brutal battles in the Pacific, and understand the consequences of Japan's wartime ambitions.

Uploaded to YouTube by HistoryDive.

Wayback Machine archive

(This is intended as humor.)

Today we look at a Kickstarter DIY keyboard project by Chris Dimino. It's a fairly unique take on the custom keyboard scene that I think is well-worth covering; hope you enjoy the video! :)

Uplaoded to YouTube by Chyrosran22.

Wayback Machine archive

Uploaded to YouTube by Half as Interesting.

Wayback Machine archive

My favorite scene from Rogue One recreated in LEGO.

Uploaded to YouTube by LFP Animations.

Wayback Machine archive