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The inexhaustible bottle is a simple demonstration of hydrostatics, specifically Pascal's law. Pascal's law states that any pressure applied at any point in a continuous fluid is applied equally throughout the fluid. For example, if you squeeze the top of a disposable water bottle, the entire bottle inflates evenly
It is more likely that tiny dust particles act as nuclei in supersaturated vapours or solutions. In the cloud chamber, it is the clusters of ions caused by a passing high-energy particle that acts as nucleation centers. Actually, vapours seem to be much less finicky than solutions about the sort of nuclei required.
Ammonia fountain — introduces concepts like solubility and the gas laws at entry level.; Barking dog reaction — demonstrates rapid exothermic chemical reaction; Blue bottle (chemical reaction) — demonstrates reduction and oxidation reactions, and chemical colour change
The Wegener–Bergeron–Findeisen process (after Alfred Wegener, Tor Bergeron and Walter Findeisen []), (or "cold-rain process") is a process of ice crystal growth that occurs in mixed phase clouds (containing a mixture of supercooled water and ice) in regions where the ambient vapor pressure falls between the saturation vapor pressure over water and the lower saturation vapor pressure over ice.
The oldest message in a bottle ever found was 131 years and 223 days old when it was discovered, Guinness World Records said in a statement. Australians Tonya and Kym Illman found the message on ...
the cloud IR emissivity, with values between 0 and 1, with a global average around 0.7; the effective cloud amount, the cloud amount weighted by the cloud IR emissivity, with a global average of 0.5; the cloud (visible) optical depth varies within a range of 4 and 10. the cloud water path for the liquid and solid (ice) phases of the cloud particles
When police officers used the “kettling” technique and pepper sprayed protesters who were trying to leave a demonstration in Mobile, Alabama, Tia Pugh took matters into her own hands.
This particular demonstration is dominated by surface tension. (McLean 2012, Figure 7.3.6 states that the water deflection "actually demonstrates molecular attraction and surface tension.") Another demonstration is to direct the air flow from, e.g., a vacuum cleaner operating in reverse, tangentially past a round cylinder. A waste basket works ...