Sciencealpha

Fuelless generator – cheap and environmentally friendly source of energy. Fuelless electric generator (jet engine) is an operating on water

Artificial sun – illumination of the Earth from space. Technology is in the process of development! An artificial sun, i.e.

Aluminium oxide, properties, preparation, chemical reactions. Aluminium oxide is an inorganic substance has the chemical formula Al2O3. Brief characteristics of

Liquefied gas. Liquefied natural gas is natural gas predominantly consisting of methane (CH4), artificially liquefied by cooling to minus 160

Ultra-light diffraction lens, replacing a complex optical system.     Ultralight diffraction lens weighing just 5 grams with the unique

GOST 10178-85 Portland cement and Portland slag cement. Specifications (With Amendments No. 1, 2).     GOST 10178-85 Group Ж12

GOST 8736-2014 Sand for construction works. Technical specifications (with Amendment).     GOST 8736-2014 Group Ж17     INTERSTATE STANDARD

GOST 8267-93 Crushed stone and gravel from dense rocks for construction works. Technical specifications (Changes No. 1-4).     GOST

GOST 8218-89 Milk. The method of determining the purity     GOST 8218-89 Group H19     INTERSTATE STANDARD MILK

GOST 31450-2013 Milk drinking. Technical specifications (with Amendment) GOST 31450-2013 Group H17     INTERSTATE STANDARD MILK DRINKING Specifications Drinking