Home-made toys for girls and boys wooden and cardboard toys mechanical and electrical toysDescrição completa
DTG Printer, T-Shirt PrinterFull description
How to make AM crystal radios using home made electronic parts. Common houshold items are used to make coils, capacitors, etc. (319 pages)
i built this out of steel pipe first and then scaled down to a pen size version. very simple to make and shoots .22 caliber buets at about 650 fps.Full description
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In both the mining and construction industries, blasting is the predominant method for fragmentation of consolidated mineral deposits and rocks. The public relation problems of users of explosive...
Summary of blasting theory
Muitas pessoas quando vão adquirir algum produto, pesquisam antes para saber se ele realmente funciona, por isso, resolvi ajudar a esclarecer as possíveis dúvidas sobre BodyFit Caps. Dúvidas como BodyFit Caps funciona?, BodyFit Caps como usar?, BodyF
EXAMEN DE APTITUD VOCACIONAL L. KNAPP, R. KNAPP - 1981
In both the mining and construction industries, blasting is the predominant method for fragmentation of consolidated mineral deposits and rocks. The public relation problems of users of explosive...
DRILLING ,BLASTING AND FRAGMENTATION OF ROCKS 1:Factors affecting drill pattern i:geology ii: area shape iii:free faces-location and nos iv:boreholes-dimensions v :explosives-types and characterist...
opration of blasting of boreholes
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In both the mining and construction industries, blasting is the predominant method for fragmentation of consolidated mineral deposits and rocks. The public relation problems of users of explosive...
Deciding how you to know Blasting Index in coal mining industry.Deskripsi lengkap
Peledakan batu kapur di PT Semen Batu Raja. Pengaruh energi peldakan terhadap fragmentasi
Abrasive blastingFull description
In both the mining and construction industries, blasting is the predominant method for fragmentation of consolidated mineral deposits and rocks. The public relation problems of users of explosive...
Home made blasting caps #8 blasting cap Materials required are a 10 inch waterproof fuse, a spent 223 cartridge, smokeless gunpowder from a pistol cartridge, mercury fulminate powder, sulphur, Potassium Chlorate powder. The last two are optional. Combine 1 part Pottassium Chlorate with 1/8 part sulphur. This is mix 1. Mix one part mercury fulminate with 1/2 part mix1. This is the final mix. Fill the 223 shell half full of smokeless gunpowder. Fill the rest of it with the final mix. Put the fuse in the shell and close it off with water resistant glue. This is a #8 detonator which can be ignited by flame. J1 Detonator Materials required are a 12 inch waterproof fuse, a spent 223 cartridge, smokeless gunpowder from a pistol cartridge, mercury fulminate powder, sulphur, Potassium Chlorate powder. Combine 1 part Pottassium Chlorate with 1/8 part sulphur. This is mix 1. Mix 2 part mercury fulminate with 1/2 part mix1. This is the final mix. Fill the 223 shell to the rim with final mix and the rest of the shell should be filled with smokeless powder. Place the fuse in the 223 shell, pinch and glue. Compound detonators Compound detonars are very useful in a situation with negative enviromental factors such as dust, rain, heat and cold. These detonars are a sure way of being sure the charge goes off. Materials required are 15 inch fuse, Mercury Fulminate, smokeless powder, Pottassium Chlorate and a spent 30 06 shell. Mix 1 part mercury fulminate with 1/8 part Potassium chlorate, this is mix 1. Mix 1 part mix1 with 1/8 part smokeless powder. This is the final mix. Put the final mix in the shell. Insert the fuse, pinch and seal. Electric detonator To convert any of the above detonators into an electric detonator an electric ignitor as used for rocket engines is used. This can be found at hobby stores. The ignitor can be inserted instead of a fuse and sealed but not pinched in the shell.