Some interesting facts about WINE bottles

Why are there an indentation in the bottom of some wine bottles? What difference does the shapes and colours of bottles have on the wine? How did it happen that 750 ml became the standard for the volume of wine in a bottle? All these questions will be answered in this video.
My thanks to Hendrik who suggested this video.
PHOTOS
Pexels - Tim Durand
Pixabay - photo-graphe, juliacasado1, PhotoMIX-Company, ArtTower, NauticalVoyager, Hans, JillWellington, Oldiefan, AlLes, stevepb, Timbigger, geralt, 0-0-0-0, Buntysmum, mikefish70, paolofalcioni, 955169, IgorKon, Goodfreephotos_com, HelenJank, AlexAntropov86, sabinevanerp, Marzena7, GPoulsen, OpenClipart-Vectors, caterina-priesner, BarbeeAnne, ArtTower, darksouls1
LINKS
recipes.howstuffworks.com/foo...
winefolly.com/tips/wine-bottl...
disndis.com/blogs/blog/why-wi...
gratsi.com/blogs/all/wine-bot...
news.wine.co.za/news.aspx?NEW...
en.wikipedia.org/wiki/Wine_bo...