The answer to whether Germany's Autobahn has a speed limit is — yes and no. While around half of the Autobahn system has no posted speed limits, one-third of the Autobahn has a permanent, posted limit ...
The U.S. has been limiting vehicle speeds since 1901, when the state of Connecticut became the first to set laws regarding automotive speed. The new law set the limit at 12 mph in cities and 15 mph in ...
Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...
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