Coconut tree,  botanical vintage engraving - Vintage Nostalgia
Coconut tree, botanical vintage engraving

The coconut palm produces a fruit with a large quantity of water, which can be used to produce oil from the kernel, charcoal from the shell and coir from the husk.The edible coconut flesh is used for oil and milk, … Continued

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Ruhmkorff inductor - Vintage Nostalgia
Ruhmkorff inductor

Illustration from middle ‘800: electrical transformer used to produce an alternate very high voltage from a low-voltage direct current, patented in 1851 by Heinrich Ruhmkorff, German inventor.

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