There’s a cliff wall full of 70 million year old dinosaur footprints in Spain’s Pyrenees mountains, just a 1.5 hour drive north from Barcelona. In this episode of Jurassic CSI, Walk Like a Dinosaur, Dr. Phil Manning, head of Paleontology Research Group at University of Manchester, joins paleontologists from The Catalan Institute of Paleontology as they climb down the former mud plain to measure the extremely fragile footprints by hand. They also use long range LiDAR 3D scanning to capture the rock face and later calculate the animals’ dimensions, how fast they might have walked, and more.
Showing 384 posts tagged science
From The New York Times, Olympics 2014: The Science of Snowmaking:
Machines make snow the same way nature does, by freezing water droplets. But they do it a few feet above the ground, rather than in the much colder conditions high in the atmosphere. Snowmaking machines employ a few thermodynamic tricks to help, but at times there is a limit to what physics can do…
…a droplet may not freeze entirely during the few seconds it takes to fall to the ground — what snowmakers call hang time.
“We’re basically making eggs,” Mr. Moulton said — icy shells around still-liquid centers.
From KQED Science, find out how San Francisco’s 600 tons of compostable waste can be transformed into a dark, nutrient-rich material that will not only feed plants to improve the quality of what we eat and drink, but that also has the potential to offset America’s carbon emissions by over 20%. Above, agronomist Bob Shaffer takes us Inside the Compost Cycle.
Food scraps, mostly compostable, are over 30% of everyone’s garbage, and could instead help turn poor dirt into nutrient-rich soil where you live. If you’re interested in learning how to compost, check out these excellent links:
This papercraft pop-up book illustrates how South America and Africa used to be connected, how the supercontinent Pangaea broke apart 200 million years ago, how the Earth's seven primary tectonic plates are ever-shifting, and much more in this TED-Ed by educator Michael Molina: The Pangaea Pop-up.
There’s more paper-inspired science storytelling in the archives, including The Animated Life of A.R. Wallace, stop-motion shorts by Studio Nos, Whale Fall (After Life of a Whale), and another pop-up book: Revolution ( Life Cycle of a Drop of Water).
An animal that can push with 40x their bodyweight, the hairy-tailed mole for example, is definitely something to better understand, and scientists at the University of Massachusetts and Brown University are trying to do just that. So how exactly do moles move so much dirt around as they tunnel underground?
From The New York Times’ ScienceTake: Uncovering the Secrets of Mole Motion.