Forwarded from Science and facts
This green screen is for sun protection allowing outdoor dining and activity in a fresh environment, with a consistent temperature reduction during the summer
Science and facts💡
Science and facts💡
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Water filter
✅Pine or spruce wood is porous enough to allow water to pass through, but also to trap bacteria and other harmful particles.
✅Most bacteria are 1 to 10 microns long, and the gaps in the wood tissue are small enough to trap them.
✅Cut a piece of wood 3-4 cm long and about 2 cm in diameter and place it in a tube.
✅By passing water through it under pressure, you can filter 4 liters of pure water in 24 hours.
✅Pine or spruce wood is porous enough to allow water to pass through, but also to trap bacteria and other harmful particles.
✅Most bacteria are 1 to 10 microns long, and the gaps in the wood tissue are small enough to trap them.
✅Cut a piece of wood 3-4 cm long and about 2 cm in diameter and place it in a tube.
✅By passing water through it under pressure, you can filter 4 liters of pure water in 24 hours.
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