Helicopter experiment (Oszkár Asboth, 1928)

As a milestone in the history of aviation, Oszkár Asboth´s first helicopter made its first flight in 1928.

Leonardo da Vinci’s inventions - Flying machine (1488–1489)

The aim of this extraordinarily complex study was to mimic the different phases of the flight of birds.

Hydrogen peroxide (H₂O₂)

The compound of hydrogen and oxygen. Colorless, odorless liquid; heavier than water.

Pyridine (C₅H₅N)

A basic heterocyclic organic compound; a colorless, pungent toxic liquid.

Hydrogen (H₂)

Colorless, odorless, lighter-than-air gas. The most common chemical element in the universe.

Benzoic acid (C₆H₅COOH)

The simplest of the aromatic carboxylic acids.

Ammonium ion (NH₄⁺)

A compound ion generated when a proton is added to an ammonia molecule.

Imidazole (C₃H₄N₂)

A biologically and practically important organic compound.

Chloromethane (methyl-chloride) (CH₃Cl)

Chloromethane can be prepared by heating a mixture of methane and chlorine.

Ethyl acetate (C₄H₈O₂)

One of the most important esters, produced by the reaction of ethanol and acetic acid.

Pentane (C₅H₁₂)

The fifth member in the alkane homologous series. A colorless, combustible liquid.

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