![Dude shows off the invisibility shield he made [VIDEO]](https://vidid.net/storage/thumbnails/FNfirqnS/medium/dude-shows-off-the-invisibility-shield-he-made-video.jpg)
Now he just needs to make the shield invisible...
![The stability of a high speed train in China [VIDEO]](https://vidid.net/storage/thumbnails/XXOIKlHA/medium/the-stability-of-a-high-speed-train-in-china-video.jpg)
China's high speed rail network is world-leading and uses exclusively China-made tech. It's in a whole other league for speed and stability.
China's high speed rail network is world-leading and uses exclusively China-made tech. It's in a whole other league for speed and stability.
![Useful maths multiplication tips [VIDEO]](https://vidid.net/storage/thumbnails/nESmiyg3/medium/useful-maths-multiplication-tips-video.jpg)
That only works for sepcific numbers.
![Kinetic chessboard inspired by origami [VIDEO]](https://vidid.net/storage/thumbnails/JMoffGQg/medium/kinetic-chessboard-inspired-by-origami-video.jpg)
Me thinks this is a 3D print waiting to happen...
![How people think our solar system works vs how it really works [VIDEO]](https://vidid.net/storage/thumbnails/nyFLCLvp/medium/how-people-think-our-solar-system-works-vs-how-it-really-works-video.jpg)
Where are we headed to?
![How colors change as you go deeper underwater [VIDEO]](https://vidid.net/storage/thumbnails/eSjHmr37/medium/how-colors-change-as-you-go-deeper-underwater-video.jpg)
In water, colors with lower energy, such as reds, oranges, and yellows are filtered out quickly. Because blue and violet light waves have more energy, they travel deeper through water.
In water, colors with lower energy, such as reds, oranges, and yellows are filtered out quickly. Because blue and violet light waves have more energy, they travel deeper through water.
![How These Prosthetics Make Everyday Tasks Easier [VIDEO]](https://vidid.net/storage/thumbnails/9X5ummu6/medium/how-these-prosthetics-make-everyday-tasks-easier-video.jpg)
Naked Prosthetics custom-makes prosthetics that help give amputees motor function and protection. Specifically developed for those with finger loss, these prosthetics mimic natural finger motion by working in cohesion with the remaining fingers. Naked Prosthetics makes the fingers through a combination of 3D printing and machinery.
Naked Prosthetics custom-makes prosthetics that help give amputees motor function and protection. Specifically developed for those with finger loss, these prosthetics mimic natural finger motion by working in cohesion with the remaining fingers. Naked Prosthetics makes the fingers through a combination of 3D printing and machinery.
![How wood is made into planks for construction [VIDEO]](https://vidid.net/storage/thumbnails/37sPzIcz/medium/how-wood-is-made-into-planks-for-construction-video.jpg)
Seems like a second set of teeth on the back side of the bandsaw blade would cut the cycle time significantly.
Seems like a second set of teeth on the back side of the bandsaw blade would cut the cycle time significantly.
![China's First Suspended Monorail Launched In Wuhan [VIDEO]](https://vidid.net/storage/thumbnails/7hB8NnHS/medium/chinas-first-suspended-monorail-launched-in-wuhan-video.jpg)
The Wuhan monorail, with rails on top giving it an upside-down appearance,
The Wuhan monorail, with rails on top giving it an upside-down appearance,
![This is how geologists collect lava samples from an active volcano [VIDEO]](https://vidid.net/storage/thumbnails/W2S6ag0L/medium/this-is-how-geologists-collect-lava-samples-from-an-active-volcano-video.jpg)
Geologists collect lava samples to understand the inner workings of volcanoes, and to help predict future eruptions.
Geologists collect lava samples to understand the inner workings of volcanoes, and to help predict future eruptions.
