Studying dinosaur bones and physiology can only teach us so much about how dinosaurs actually walked the Earth. Because dinosaurs called theropods are related to modern birds, a few researchers thought they could study how they walk using chickens.
Theropods include dinosaurs like the Tyrannosaurus and Velociraptor, but they also ranged in size all the way down to tiny chicken-sized raptors covered in feathers. Theropods and modern birds also both have spongy air-filled bones, wishbones, and feathers and lay eggs and watch over them.
NASA astronaut Karen Nyberg, Expedition 36 flight engineer, works to setup the Multi-Purpose Small Payload Rack (MSPR) fluorescence microscope in the Kibo laboratory of the International Space Station. This configuration, along with the leak checks that the crew performed in June, is in preparation for the Aniso Tubule experiment launching on HTV-4 in August. Aniso Tubule will investigate the role of cortical microtubules and microtubule-associated proteins in plant growth while in microgravity.
They found that the effects of gravity and drag combine to influence the event.
Therefore as the bread falls to the ground it only has the opportunity to achieve half a rotation before reaching the floor, thus landing butter-side down.