Tuesday, October 22

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Space

The largest asteroid sample ever collected has arrived on Earth

The largest asteroid sample ever collected and the first for the American space agency NASA, has successfully landed on Earth in the US state of Utah.

Technology

The story of traffic lights

Red, yellow and green are the colors of traffic lights today, but it wasn’t always like that. The first (and disastrous) attempt to install a traffic light was on December 10, 1868, which is also the official date of installation of the first traffic light in the world.

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Browsing: asteroid sample