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Astute observation, and very interesting phenomena. I do know for a fact that the reason the column of water narrows as it gets further from the faucet is due to acceleration by gravity and an increasing fluid velocity. The higher the velocity, the lower the pressure. Since the pressure outside everywhere along the column is essentially the same, the column ...


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The LCD panel consists of elements shown in the figure below. The unpolarized light from backlight panel travels through polarizer, after which the light is linearly polarized. TFT panel controls the voltage on the liquid crystal, voltage applied will cause the liquid crystals to "twist" and thus rotate the polarization of the light. Light then passes the ...


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There are so many ways you can do that: put some sand on the floor (Like Olympics!) Lay some papers on the ground, and put your thrown object in the ink. then when it lands it will make a mark (actually this method were used my famous physicist Galileo Galilei ) pour down some Bean or nuts on the ground, then when object hit them it will make a mark ...


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You can draw a few equidistant lines on the paper that is on the floor and make a video of the falling projectile.


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We would expect the screen to display bright images as dark (and vice versa) as one of the polarisers has changed 90degs


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It is because by bathing in cold water the heat energy of the body is given to the cool water.This rises the temperature of the air inside the bathroom which we can not feel because our body has already attained the thermal equilibrium with the air inside.


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you can use GOM playef pres F to count revolutions if you count 6 frames per revolution 6x5= 30 frames then you spin is 5 rev per second thats is tha same 5x60 second= 300 rpms, or use iphone Spinorama free app


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If the source is far away, light acquires a certain degree of coherence. Have a look at the Van Cittert–Zernike theorem, also in wikipedia: "the wavefront from an incoherent source will appear mostly coherent at large distances". The resulting fringes are different for different colors, but any color has max for straightforward direction. So, you see the ...


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I don't really see a difference between the microwave measurement and the definitions of the SI units. We have Unit of time: second: The second is the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom. Unit of length: meter: The ...


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I'm not an engineer, but this is how id do it. According to your rules, we can use a computer, and Audacity. You get a pair of headphones. You plug the headphones into the microphone jack on your computer. You open Audacity. You get a very small magnet. You glue the very small magnet to one of the fan blades. You turn the fan on. You hold one of the ...


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You might find the Faraday Effect easier. Since it was actually done by Faraday it is quite easy. You need a glass or plastic rod aligned with the magnetic field you want to measure, a monochromatic or coherent light source, a couple of polarizing filters and a photodiode. The magnetic field rotates the plane of polarization proportional to the field in the ...


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we feel warm after the bath in the bathroom because as the temperature of the water is cool when compare to temperature of the body.So,that the body cools & the surrounding temperature become hot or warm(humidity).


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If you get another chance to observe such a problem (where adjacent "identical" experiments give different but individually repeatable results), try changing one factor at a time. swap marbles (projectile/target) swap marbles with another experiment swap tracks swap location in the lab swap operators And look at all the data: is the distance flown by ...


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Keep in mind that momentum is conserved. These results can indicate that the marble on the track had an initial y component of momentum, the stationary marble had an initial y component of momentum, or that more forces were acting on the marbles than you are aware of. Or something else went wrong, like the carbon paper was moved. I would guess that this ...



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