Editor's Note: Looking for more engineering creativity? This page features videos curated in 2026. For our previous roundups of ingenious inventions, head over to our 2024 and 2025 collections.

Engineers have some of the most out-there and smart ideas that boring minds like mine would just never think to try—which is why I'm an editor and not an engineer. From experimenting with what-ifs of chemical reactions to Rube Goldberg machines for the most basic tasks to creating a new concept for a product, it's never a dull moment when seeing inside an engineer's mind. So take a break and watch this collection of videos that put the what-ifs into practice from industry professionals and engineering enthusiasts alike.

Latest Video: How I Made the Cheapest Nuclear Reactor Possible

In this video, inventor Martin finds a way to build a cheap nuclear reactor, taking us through his design process the entire way.

I Built a Shockwave Cannon

In this video, Mike Shake re-engineers a high-pressure shockwave air gun to send it to its max power.

A Fruit Bowl That Mechanically Changes Size

In this video, Simone Giertz tries to redesign her mechanical fruit bowl to be more practical and visually appealing.

I Built a Bike Out of Home Depot Supplies

In this video, BeBeau Builds tries to build a bike using only supplies he bought from Home Depot.

I Built the Thinnest Street Legal Car

In this video, an old Ford Festiva is cut in half and made into the thinnest, street legal car.

Exploring 500 Unhinged Engineering Projects

In this video, William Osman explores Open Sauce, the mad science fair for creators, to see all of the crazy inventions.

Making an Autocorrect Mini Golf Club (Part 2)

In this video, Stuff Made Here builds a golf club that will correct your aim during your swing to ensure the ball goes in the hole.

Making an Autocorrect Mini Golf Club (Part 1)

In this video, Stuff Made Here builds a golf club that will correct your aim during your swing to ensure the ball goes in the hole.

I Built a Light That Can See Radio Waves

In this video, Rootkid, an engineering artist, builds a light that visualizes radio waves by translating radio signals into light.

Making the World's Largest Tape Measure

In this video, Ali Spagnola breaks the Guinness Record for the world's largest working tape measure using 3D printing and sheet metal fabrication.

Making My Dog a Treadmill - Part 2

In this video, metalworker Alec Steele sets out to create a treadmill for his dog to keep her healthy, but also to see if he can harness her energy to power a lightbulb.

Making My Dog a Treadmill - Part 1

In this video, metalworker Alec Steele sets out to create a treadmill for his dog to keep her healthy, but also to see if he can harness her energy to power a lightbulb.

I Gave a Toy Car 140x the Power!

In this video, Grind Hard Plumbing Co.—car enthusiasts that build crazy cars and contraptions—take a mini Lambo and outfit it with 28,000 W to make it go insanely fast.

It's Like a Grappling Gun, But for Sledding

In this video, engineer hobbyist John Boss sets out to create a custom, 3D-printed tow rope to help him haul his son back up sledding hills.

Building an LED Supernova

In this video, Matt from the YouTube channel DIY Perks creates a custom water-cooling system to power one of the world's brightest LEDs.