○○○ Wednesday ⪢⪢
The reason that _ is spelled so funny is because it's
actually Woden's day. Woden was the big guy of Germanic mythology and the creator of the universe and master of hunting and war while the Roman god Mercury was a mere messenger to the gods. #bookmark
http://qindex.info/i.php?x=10384
○○○ microscopic ⪢⪢
You will often see snakes flicking their tongue in and out. Again this snake is not being rude. It is
actually tasting the air - collecting microscopic particles which it can analyze using a special organ in the roof of its mouth.
http://qindex.info/i.php?x=14809
○○○ vertebrate ⪢⪢
Snakes are also vertebrates which means that they have a backbone.
Actually snakes are almost ALL backbone! A snake's skeleton is most made of its skull, the vertebrate (or bones of the spine) and ribs.
http://qindex.info/i.php?x=16217
○○○ cryogenic ⪢⪢
_____ engines are the most prestigious rocket engine technology. Due to their design and operational complexity, only a few countries have
actually been able to develop this intriguing engine. #bookmark
http://qindex.info/i.php?x=17953