Improvements help the technique rival x-ray crystallography.
Category: futurism – Page 722
Circa 2013
A large variety of modern components and products such as fuel injectors and spinning nozzles require holes drilled to very high standards as fare as roundness, diameter and aspect ratio are concerned. Laser-beam helical drilling has shown great promise to produce such high quality micro holes. In helical drilling, the laser beam is rotated relative to the work piece. In this case, the rotational movement is produced using a Dove prism, mounted in a high speed, hollow shaft motor. Different kind of holes are drilled and investigated with respect to hole-quality and drilling time.
He built a rollercoaster in his backyard.
This guy built a fully functional rollercoaster in his backyard 😱 🎢.
Scientists said some of the most mysterious and frightening creatures in the oceans today were swimming all over Kentucky 350 million years ago.
“There was no cave here,” said paleontologist JP Hodnett. “It was just a big open marine ocean floor with lots of water over your head. Over time that filled up and then it became dry land.”
Learning that sharks lived in our backyards all started by chance at Mammoth Cave. Back in the 90s, guides started noticing shark teeth and other fossils. But no one had ever found any shark fossils from this layer until now.
The attack took place on the German capital’s Museum Island and took over two weeks to come to light.
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Hmm…hopefully it doesn’t get worse.
Can researchers use data science to accurately predict the future?