Crows are special. They make tools from memory, and they even gather around their dead. And the list of what makes them special gets longer every day. Research published on Wednesday in the journal ...
New Caledonian crows can tell how heavy an object is simply by seeing it sway in the wind, researchers have found. The experiment makes crows the first creatures other than humans to have the ability.
The terms weight and mass are often used incorrectly. Phrases like ‘a bag of sugar weighs 1 kg’ are not scientifically correct. This means that a 1 kg mass would be attracted to Earth by a force of 10 ...
The terms weight and mass are often used incorrectly. Phrases like ‘a bag of sugar weighs 1 kg’ are not scientifically correct. This means that a 1 kg mass would be attracted to Earth by a force of 10 ...
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