The video discusses the creation of a bulletproof suit using a shear-thickening fluid, similar to Oobleck, which is a liquid that behaves like a solid when sudden force is applied. The fluid is made by mixing nanoparticles, such as silicon particles, with a carrier fluid. The video explains the science behind how the fluid works and how it can be used to create a bulletproof material.
The creator of the video worked with the Hacksmith to create a suit using this fluid, and they tested it by shooting it with a 45 ACP round. The results showed that the fluid did not make the material worse, but it did not provide a significant improvement in stopping the bullet either.
The video also mentions that the creator is working on a new project to create lightweight tank armor using a microwave. The video ends with a thank you to the patrons and supporters who make the channel possible.
Here are the key facts extracted from the text:
1. Oobleck is a liquid that behaves strangely, pouring like a liquid but seeming solid when punched suddenly.
2. The Hacksmith asked for help in creating a bulletproof suit, and Oobleck was suggested as an option.
3. The world of protective armor is advancing, and one option being investigated is using fluids like Oobleck to make armor stronger without adding weight or bulk.
4. Fluids generally come in one of three forms: shear thickening, Newtonian, and shear thinning.
5. Oobleck is a shear thickening fluid, meaning its viscosity increases when a sudden force is applied.
6. When a sudden force is applied to Oobleck, the water tries to move out of the way, but the particles are forced into contact with each other, causing the fluid to behave like a solid.
7. If the force is removed, the particles decompress, and the fluid flows like a liquid again.
8. Oobleck is made by mixing cornstarch and water.
9. The properties of Oobleck change dramatically when the concentration of starch is high enough.
10. Oobleck can be used to spread out the impact of an incoming projectile, making it a potential option for creating bulletproof armor.
11. To make a more effective shear thickening fluid, a stronger base material and finer particles are needed.
12. Silicon nanoparticles were used to create a shear thickening fluid for the bulletproof suit.
13. The nanoparticles were grown using a chemical synthesis process.
14. The fluid was then mixed with polyethylene glycol and applied to fabric to create a bulletproof material.
15. The test sample was shot with a 45 ACP round, and while it did not penetrate, it did cause some spalling on the bottom layer.
16. The control sample, made without the fluid, showed similar results, indicating that the material stack-up was effective in stopping the bullet.
17. The Hacksmith used the shear thickening fluid to create a bulletproof suit that was tested with a submachine gun.