What is do a barrel roll OR Z or R twice - OXYGEN

Do a Barrel Roll, a Google Easter Egg trick. You can perform this trick by searching Google for do a barrel roll, Z or R twice.

Acyl Glucuronide and Coenzyme A Thioester Metabolites of Carboxylic Acid-Containing Drug Molecules: Layering Chemistry with Reactive Metabolism and Toxicology

Rational design of proteasome inhibitors based on the structure of the endogenous inhibitor PI31/Fub1

Do A Barrel Roll in Google and Z or R twice in Google

Mitopherogenesis, a form of mitochondria-specific ectocytosis, regulates sperm mitochondrial quantity and fertility

Nanoenergy Advances, Free Full-Text

M6L12 Nanospheres with Multiple C70 Binding Sites for 1O2 Formation in Organic and Aqueous Media

Foods, Free Full-Text

Z or R Twice - Google Barrel Roll

Tutorials/Block update detector – Minecraft Wiki

Terrestrial-type nitrogen-fixing symbiosis between seagrass and a marine bacterium

Space Launch System - Wikipedia