brinicle sinking brine growing ice tube

A sinking brine stream grows an underwater ice tube

A brinicle forms when sea ice releases very cold, salty water that sinks into the surrounding seawater. The brine freezes seawater into a tube around itself. That ice layer helps keep the brine cold as it sinks and the tube continues to grow.

The Red Sea is slowly becoming a new ocean

The Arabian Peninsula is moving away from northeastern Africa along an active tectonic boundary. As the crust stretches and separates, the Red Sea basin gradually widens. If this geological process continues over millions of years, the basin could develop further into an ocean like the Atlantic. Continental separation is happening today, just too slowly to notice without instruments.

A boat answered wireless commands

In 1898, Nikola Tesla publicly demonstrated a radio-controlled boat, showing that wireless signals could control a vehicle remotely. He called the system a “telautomaton.”

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brinicle sinking brine growing ice tube

A sinking brine stream grows an underwater ice tube

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