Ultra-high-definition television (also known as Ultra HD television, Ultra HD, Uhdtv, UHD and Super Hi-Vision) today includes 4K UHD and 8K UHD, which are two digital video formats with an aspect ratio of 16:9.
Development of the Ju 52 commenced in the late 1920s, headed by German aeronautical engineer Ernst Zindel. The aircraft's design incorporated a corrugated duralumin metal skin as a strengthening measure, which was a material design pioneered…
Kvalitní hliníková fotbalová branka od firmy Helo Sports, která je dodavatelem branek například i pro vrcholové fotbalové akce jako Mistroství světa či Evropy.
In the 13th century, fire lance barrels were replaced with metal tubes and transformed into the metal-barreled hand cannon. [5 ] The technology gradually spread throughout Eurasia during the 14th century.
Published in the journal: . PLoS Pathog 11(7): e32767. doi:10.1371/journal.ppat.1005058 Category: Research Article doi: https://doi.org/10.1371/journal.ppat.1005058