Bermuda triangle (mystery )
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interesting fact about salt
If you pour a handful of salt into a glass of water, the water level will go down When you step inside a bath tub, the water level will immediately go up, per Achimedes’ law . But when you add a volume of sodium chloride (salt) to a volume of water, the overall volume actually decreases by up to 2%. What gives? The net reduction in observed volume is due to solvent molecules which become more ordered in the vicinity of dissolved ions.
smell of chlorine
Lightning strikes produce Ozone, hence the characteristic smell after lightning storms Ozone, the triple oxygen molecule that acts like a protective stratospheric blanket against ultraviolet rays, is created in nature by lightning. When it strikes, the lightning cracks oxygen molecules in the atmosphere into radicals which reform into ozone. The smell of ozone is very sharp, often described as similar to that of chlorine. This is why you get that “clean” smell sensation after a thunderstorm.
facts
Unlike many substances, water expands as it freezes. An ice cube takes up about 9% more volume than the water used to make it. If you pour a handful of salt into a full glass of water, the water level will actually go down rather than overflowing the glass. Similarly, if you mix half a liter of alcohol and half a liter of water, the total volume of the liquid will be less than one liter. There is about 1/2 lb or 250 g of salt (NaCl) in the average adult human body. A pure element takes many forms. For example, diamond and graphite both are forms of pure carbon. Many radioactive elements actually glow in the dark. The chemical name for water (H 2 O) is dihydrogen monoxide. The only letter not appearing on the periodic table is J. Lightning strikes produce O 3 , which is ozone, and strengthen the ozone layer of the atmosphere. The only two non-silvery metals are gold and copper . Although oxygen gas is colorless, the liquid and solid forms of oxyge
