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Physics behind swimming - thermodynamics



All that happens when I adjust the valve is that more or less of that water passes through the heat exchanger, while the remainder heads directy back to the pool..



It is arguable that keeping a straight arm will transfer the most power to the water, and hence make you go faster; it engages your shoulder and lats more effectively but is harder to do.





Within the furnace itself, you're relying on natural convection to keep the in-furnace heat exchanger warm.


Here’s What You Need to Know About the Physics of Swimming





Why do ducklings swim in a row? « Adafruit Industries


If you're a nervous nonswimmer, thinking about the solid science that keeps people afloat can give you enough confidence to break through your fear.



For every action, there is an equal and opposite reaction.







My pool guy's experience tells him otherwise.





This weight is equal to the buoyant force pushing upward on the object.


Portland Swim Coaching


By moving his hand along an optimal path, as shown, and adjusting the orientation of his hand throughout i.



Swimmers push against water to move forward, and water pushes back to slow them down.


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Description: While cutting through the water surface at high speeds, the pressure around the swimmer increases due to the difference in water velocities directly around his or her body.

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Views: 4795 Date: 18.02.2022 Favorited: 144 favorites
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It's fairly well known that fatter people are more buoyant than skinnier ones, and that's because fat is less dense more buoyant than muscle.
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Among the most fundamental rules of physics, these three basic principles are enough to explain completely the movement of almost every single object you're ever likely to come across.
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My pool guy's experience tells him otherwise.

Latest Comments

    +721reps
    The answer, we found, is yes.
    By: Adaliah
    +321reps
    Share: At nearly 100 feet long and weighing as much as 170 tons, the blue whale is the largest creature on the planet, and by far the heaviest living thing ever seen on Earth.
    By: Lammond
    +365reps
    At top speed the swimmer is using all their energy to overcome the drag forces acting upon them.
    By: Grodin
    +865reps
    I am sorry - according to the laws of physics, your pool guy is wrong.
    By: Meldon
    +54reps
    Where swimming is concerned, the third law is perhaps the most important.
    By: Pistol
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