A fossil was forgotten for 70 years in a museum drawer — when they re-examined it with tomography, they discovered a 200-million-year-old predator with a bite that challenges what was known about crocodiles.

Australia solved the problem of a beach that kept losing sand by building a 494-meter jetty into the ocean with 10 pumps buried at the sea bottom. The system, which pumps 500,000 cubic meters of sand per year through a 6.4 km pipeline under the channel bed, has been in place since 1986 and has no equivalent anywhere else in the world.

A large part of the Netherlands lies below sea level and remains dry only because an invisible machine of dikes, pumps, and giant gates works nonstop, a system born from the tragedy of 1953, when the North Sea invaded the country and killed 1,836 people.

The largest bridge in Finland has just been inaugurated and cars simply cannot pass on it; only trams, bicycles, and pedestrians are allowed to cross the 1.2 km giant with a 135-meter pillar over the Baltic Sea.

It seems simple, but it generates electricity: scientists transform ambient humidity into electricity with gelatin and salt, and the generator still works for more than 30 days.