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The team found a relationship between school study areas with relatively high collision rates and those with relatively low levels of sidewalk completeness and greater distances between marked crossing opportunities.
Digital Twins for Sustainable Transportation
Alta
Too often, socialists have seen work as the highest realization of human freedom. In truth, work will never be an entirely free activity. But in a world no longer beholden to the capitalist growth imperative, advanced technologies can substantially reduce the amount of work demanded of any individual.
How to Make a Pencil
logicmag.io
In an electric plane, about 70% of the energy used to charge up a battery would actually power the plane. There are some losses in the battery and in the motor, but this efficiency is high compared with other options being considered to decarbonize flight. With hydrogen and synthetic fuel, for example, efficiencies could be as low as 20 to 30%.
This Is What’s Keeping Electric Planes From Taking Off
Casey Crownhart
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