Search results
Results from the WOW.Com Content Network
Pentaerythritol was first reported in 1891 by German chemist Bernhard Tollens and his student P. Wigand. [5] It may be prepared via a base-catalyzed multiple-addition reaction between acetaldehyde and 3 equivalents of formaldehyde to give pentaerythrose (CAS: 3818-32-4), followed by a Cannizzaro reaction with a fourth equivalent of formaldehyde to give the final product plus formate ion.
Sunshine pop band the Association had several hits in the mid-1960s, including "Windy" and "Cherish", which went to number one.In 1967, the group's producer, Bones Howe, asked Jimmy Webb to create a pop song with different movements and changing time signatures.
[citation needed] Polyester makes up about 18% of world polymer production and is the fourth-most-produced polymer after polyethylene (PE), polypropylene (PP) and polyvinyl chloride (PVC). [citation needed] PET consists of repeating (C 10 H 8 O 4) units. PET is commonly recycled, and has the digit 1 (♳) as its resin identification code (RIC).
ExecutiveSummary Overview The missIOn ofthe Center is to create acommon ground for a strategic collaboration between Johnson & Johnson (J&J) a.nd the Pediatric Rt'search Program an at the
The Lady of Elche (Spanish: Dama de Elche, Valencian: Dama d'Elx) is a limestone [1] bust that was discovered in 1897, at La Alcudia, an archaeological site on a private estate two kilometers south of Elche, Spain. It is now exhibited in the National Archaeological Museum of Spain in Madrid.
Torres d'Agostini, Torres Central, Torres Monzino. Torres del Paine National Park (Spanish: Parque Nacional Torres del Paine) [3] is a national park encompassing mountains, glaciers, lakes, and rivers in southern Chilean Patagonia.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us
Natalie Hershlag [a] (Hebrew: נטע-לי הרשלג; [3] born () June 9, 1981), known professionally as Natalie Portman, is an Israeli-born American actress.She has had a prolific screen career from her teenage years and has starred in various blockbusters and independent films, receiving multiple accolades, including an Academy Award and two Golden Globe Awards.