A small town in Finland is about to ditch fossil fuels in its heating network thanks to a sand-filled energy storage tank the size of a house. Finnish startup Polar Night Energy recently turned on ...

Polar Night Energy will build a second pilot plant in southern Finland to test its power-to-heat-to-power sand battery technology. The project aims to demonstrate the system’s ability to ...

"Experience the enchanting Polar Night, a mystical time when the Arctic is enveloped in darkness for weeks. Underneath the serene night sky, the region transforms into a magical wonderland, where ...

"Experience the enchanting beauty of the Polar Night, where the sun disappears for weeks, casting a magical darkness over the landscape. This unique phenomenon offers a chance to witness the ...

But she also made serious contributions in statistical data analysis, and used the diagram named after her, the Nightingale rose diagram, to convince the British Parliament to enact sanitation ...

A polar day is when the sun does not set and stays above the horizon for an extended period, while a polar night is when the sun never rises above the horizon. These phenomena are a result of ...

A polar day is when the sun does not set and stays above the horizon for an extended period, while a polar night is when the sun never rises above the horizon. These phenomena are a result of ...

The 24-hour darkness during the winter near the Poles can disrupt sleep – this is how the people who live there cope.