# Tag Info

## New answers tagged home-experiment

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Any oil from your fingers that resides on the outside of the halogen lamp will absorb some of the heat and light from the filament in operation, and cause the fingerprint area to be hotter than other parts of the bulb. All it takes sometimes is a small differential in temperature for anything made of glass or quartz to develop a weak spot from the ...

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Open or not open, touching or not touching, ice cube above is better than ice cube below where cooling of the pot is concerned. Your choice is correct but it is more accurate to say that air cooled by the ice cube sinks onto the teapot thereby cooling it (note that this mechanism cannot occur if the cube was under the teapot). This isn't a question about ...

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There are many ways it's heated if you have not bathed hot. 1>Your body Heat. 2>Loss of Kinetic energy of falling water molecules 3>When a molecules drops into many smaller ones.. there is heat due to surface tension and surface energy 4>if you bath cold then you have lost enough heat to feel your surroundings warm. Amount of heat in the bathroom before ...

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This is quite humorous. In an 1883 offical US military publication, "Weather Proverbs" by 1st Lt. Dunwoody, at page 107 it is stated "When coffee bubbles collect in the centre of the cup expect fair weather. When they adhere to the cup, forming a ring, expect rain." This is the converse of the lifehack proverb! In 1997 Dave Thurlow, using a grant ...

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Heat is essentially atoms gaining energy. The energy in the bath is carried out into the rest of the room (if the water is heated)

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If the water isn't heated, the only effect I can see is that the humidity is higher. If the ambient temperature is high, this will feel hotter. Have you measured the temperature,or are you relying on your sensation?

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At time 0 when you throw the ball, there only exists the horizontal velocity you gave it, as the acceleration due to gravity hasn't created a vertical velocity yet. This horizontal velocity will remain constant until the ball hits the ground and eventually stops. Gravity is adding a perpendicular component that will affect the resultant velocity, but not the ...

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Assuming no air resistance the horizontal velocity will not change. You can calculate the horizontal velocity from the given time and distance. Vertically is an accelerated motion with constant acceleration. You can calculate the initial height from there. You are right about the final velocity. You just need to calculate $v_y$. You need the mass for ...

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I think jinawee's list (among the comments) is a great starting point. There was one interesting series of experiments that I didn't find in that list (at least not in the first 5 pages of the list that I looked through), which were reported in this PRL paper. (If you don't have access to PRL, check out the arXiv version.) What might make this series of ...

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The configuration of a static magnetic field coming from a source object like a bar magnet is determined by the constitutive relations of the surrounding material, and in particular the magnetic permeability determines how the field lines act. In the first case, you have a field emanating from a magnet, traveling through air ($\mu_r=1.000000349)$, and ...

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