On the other end, the people that appear as 3-D images are being tracked with an array of seven ordinary video cameras, while two other video cameras capture real light patterns projected in each room to calculate distances. This enables the proper depth to be re-created on the screen. ...
Charles Deehr, a professor emeritus in physics at the University of Alaska Geophysical Institute, says: “These are interference fringes due to the parallel faces of the filter and to the narrow spectral emission at 5577 Angstroms in the aurora. That green, atomic oxygen emission line is the ...
Suppose you measure the distance between a pair of ocean waves to be 25 feet. You time how long it takes for the wave to pass a pair of reference points and calculate that it's moving about 15 miles per hour. Can you calculate the wave frequency in hertz? The answer is yes, but fi...
Unlock your camera’s full potential with this guide: Overcome the frustration of missed shots with quick exposure settings. Benefit from visuals with hundreds of images and illustrations. Buy fromExpertPhotography Popular Content f-stop Dyota Camera Backpack Review for 2024 ...
The Fraunhofer diffraction formula is used to calculate the far field that is diffracted from an object when the Fraunhofer condition is met. The following is the full formula: This formula is used for calculating the far field of apertures, gratings, and the field in the focal plane of Fouri...
Note that an 8:1 ratio can be a bit tough to create. You may need harsher lighting and possibly a black reflector to add blacks into the shadow side (rather than reflecting light onto it). We calculate it the same way as above: if 4:1 is 4 times the light, then 8:1 will be ...
Hi, there. I am trying to calculate the focal length of the mirror and there is an error that mathstuff function does not exist in the current context. I want to know whether "Math Stuff" is a function or not and if it is not, please tell me which function should I replace in it...
Eccentricity is a measure of how closely a conic section resembles a circle. It is a characteristic parameter of every conic section and conic sections are said to be similar if and only if their eccentricities are equal. Parabolas and hyperbolas have on
Great question, but the answer kind of depends on how big the fireworks are and how close you are to the action. Bring both lenses and don't be afraid to swap them and change focal lengths through the show! If you are returning to a show you've been at in the past, try to rememb...
Using this I calculate what you should expect under 'perfect' collimation and under 'good but not perfect' collimation. Let's assume, as an example, that good coarse but not great fine collimation results in a degradation factor of 0.8. Then we can see: ...