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Is it true that Archimedes formulated his famous principle based on an observation he made as he immersed himself in a bath?

4 Mar 2022

Archimedes’ principle states that any object, totally or partially immersed in a fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object. But. it was not the...

Is there a difference between real snow and "artificial snow"?

17 Feb 2022

Snow-making machines actually make tiny beads of ice, each one about one ten-thousandth of an inch in diameter. Water is sprayed from a hose together with compressed air. The air is needed because...

Is there any point in drinking oxygenated water?

23 Dec 2021

Oxygen is critical for life and that also makes is susceptible to chicanery. If oxygen is so essential that the brain is permanently injured after just four minutes of deprivation, then surely more...

Why does plastic stay wet in the dishwasher whereas glass comes out dry?

12 Nov 2021

Obviously, the rate of evaporation depends on the temperature. Put a drop of water in a hot frying pan and it will sizzle and change into a vapour almost immediately. Place that drop on your...

Convergence: How Climate Change Brought Two Women Artists Together

30 Apr 2021

Kathy Jetnil-Kijiner, 30, is a native of the Marshall Islands in the western Pacific Ocean. This country of ~53,000 people is spread out over 1,159 islands with most of the population on 29 coral...

Questions Abound on the Safety of Humidifiers

15 Dec 2020

According to manufacturers, 8 million or so humidifiers are sold in the United States every year. In Canada, it has been reported that nearly half of all households use a humidifier, perhaps owing...

The Sparkle of Carbonated Water

10 Jul 2020

Many consumers today are shying away from soft drinks because of legitimate concerns about their sugar or artificial sweetener content. Plain water is the ideal alternative, but a lot of people...

Contact Tracing is the Key To Solving the Spread of Infectious Diseases

20 May 2020

Today it is COVID-19 that is sowing panic around the world but in 19th century England the fear was of cholera, a dreadful disease. It causes diarrhea so severe that a victim can lose as much as...

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