How do bulletproof vests work? - Max G. Levy
Adults ConstructionExplore the chemistry behind what makes kevlar so strong, and how this essential synthetic fiber was invented.
Primitive Technology: Water Bellows (uses water instead of leather)
Adults ConstructionI built a Water Bellows. It’s an upside-down clay pot with an inlet valve and an outlet spout. The inlet valve is simply a hole in the pot with a leaf plastered to the inside with wet clay so that it forms a one-way flap valve.
What Speakers That Cost $370,000 Sound Like | WIRED
Adults ConstructionWhat does it sound like when you listen to a speaker that’s roughly the price of the home you put it in?
Primitive Technology: Geopolymer Cement (Ash and Clay)
Adults ConstructionI have made wood ash cement before under the assumption that it was the calcium in the ash that gave it its cementitious properties...
Primitive Technology: Wet Season Destroys Thatched Workshop
Adults ConstructionThe thatched workshop where I produce bricks, pottery, cement and charcoal for various projects was destroyed by prolonged rain from the wet season.
How the Most Expensive Swords in the World Are Made
Adults ConstructionThis is a video about how Japanese samurai swords, aka katanas, are made – from the gathering of the iron sand, to the smelting of the steel, to the forging of the blade.
Primitive Technology: One-Way Blower Iron Smelt & Forging Experiment
Adults ConstructionI tested the one-way spinning blower in an iron smelt and it is more effective than the previous both way spinning blower.
Primitive Technology: One-Way Blower Iron Smelt & Forging Experiment
Adults ConstructionI tested the one-way spinning blower in an iron smelt and it is more effective than the previous both way spinning blower.
Chandigarh a perfectly planned city?
Adults ConstructionExplore the construction of the futurist city Chandigarh, a project of Prime Minister Jawaharlal Nehru and planned by Le Corbusier.
Primitive Technology: Volute Shaped Blower
Adults ConstructionI made a volute shaped blower where the housing for the fan is volute shaped, that is to say a widening spiral to test the effectiveness of a one way spinning impeller.
Primitive Technology: Brick and Charcoal Production
Adults ConstructionIn this video I use the thatched hut to fire bricks and make charcoal in for the first time.
Building a Sled | Alaska: The Next Generation
Adults ConstructionDaniel Apassingok, along with Chase and his family and friends help build a sled to help their every day lives.
Explaining concrete while getting buried in it
Adults ConstructionConcrete = cement + sand + gravel. Cement is the most important man-made material on Earth.
Primitive Technology: Making Charcoal (3 Different Methods)
Adults ConstructionAbout This Video:
With more iron smelting experiments coming up, I demonstrate 3 different methods to make charcoal, ranked easiest to hardest.
30 Days Building A Modern Underground Hut With A Grass Roof And A Swimming Pool
Adults ConstructionToday we show how to build an underground house with a pool and decorations, including an underground living room.
Primitive Technology: Iron Bacteria Cement
Adults ConstructionI developed a cement made from iron bacteria, then made pots from it to test its ability to set and not dissolve in water.
rimitive Technology: Decarburization of iron and forging experiments
Adults ConstructionI took a brittle, high carbon/iron alloy (cast iron) made from local ore and used a decarburization method to reduce it's carbon content making it malleable and forged it flat by hammering.
How Can We Store Renewable Energy?
Adults ConstructionDecarbonizing our power production is vitally important if we want to curtail climate change, but there are some major logistical issues we’re going to have to overcome before we can do that.
Primitive Technology: Cane Water Filter/Siphon
Adults ConstructionI made a water filter from cane that siphons clean water from a dirty water while simultaneously using the xylem present in the the cane as a filter.
How This Chalk Artist Creates Illusions on Pavement | Obsessed | WIRED
Adults Construction"Everything we think is real is, in some way, an illusion." Former NASA illustrator Kurt Wenner makes incredible, brain-busting chalk illusions. His works start with diligent planning, beginning with pencil and paper.
I tested the US Military’s secret space weapon
Adults ConstructionAn engineer came up with a plan to drop tungsten telephone poles from space - the idea has been seriously considered on multiple occasions, so we tested it.