Step 1 : Bend one of the paper clips in a way it can be stuck in the lock. Step 2 : Unfold the other one and make a small hook at the end of it. Step 3 : Insert the first one into the top of the lock and push it to turn the […]
Candy propellant is popular in amateur experimental rocketry, mainly due to the availability of the chemicals and ease of use. It is usually prepared by melting potassium nitrate and sugar together, but this is obviously a somewhat dangerous operation. Dry mixing is possible and much safer but produces lower quality propellant.
In this video I’m going to show you how to make a flying butterfly using paper iron wire… Now you can put it inside a coursebook or a birthday card =P You can download and print the pattern as a JPEG image or as a PDF.
Here is a quick tutorial on how to turn a mechanical pencil into a mini gun. Chronograph speed test: kinetic energy speed (m/s) speed (fps) Average 0.0847 J 22 m/s 72 fps Max 0.128 J 27 m/s 89 fps Don’t forget to check the 170 fps compressed air blowgun.
Hi everybody, I had a lot of request about selling laser ligthers… So after a small survey, the pre-orders are finally open.
Do you want to quickly copy a key ? You can do it within 5 minutes using a soda can !
Here is a video explaining how to make helicopter fireworks…
Strobe rockets function similar to strobe stars in that the reaction oscillates between flash and smoulder phase.
Do you like rockets and you are a bit bored of the orange combustion ? Here are some colored rocket propellant ! All parts by weight. Red Strontium Nitrate 50 Potassium Perchlorate 8 Parlon 18 Magnalium, 275 mesh 12 Charcoal Airfloat 5 Sulfur 5 Red Gum 2 Dextrin +5
Here is how to make colored smoke mix. In this video I show you how to make purple ones using rhodamine B. To produce color, the dye must be vaporized by the combustion heat and exit the reaction zone attached to the gasseous by-products where it will condense in air to re-form into solid dye […]