How to build a digital refracting telescope for cheap
A long time ago, in the 90s, my dad gave me a refracting telescope as a Christmas gift. It is a Bushnell 600 mm refracting… Read More »How to build a digital refracting telescope for cheap
Photography
How much does it cost to restore an old photo?
Everybody has old family photos at home, and sometimes they are almost one century old. However, as nothing lasts forever, old photographs also age and… Read More »How much does it cost to restore an old photo?