Neither scales nor feathers: scientists find ancient reptile with back nails
German paleontologists from the The Stuttgart State Museum of Natural History became interested in an unusual reptile that lived in the Triassic period about 200-250 million years ago and had a strange crest on its back, consisting of bones rather than scales or feathers.
Very expensive scales: the Apple MacBook app allows you to weigh items up to 3.5 kg on the touchpad
Thanks to a free app, Apple Macbook touchpads can now weigh small objects.
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