We know a beam of light, which is a set of Photons, is polarizable only horizontally or vertically.
Max Planck is said to be the first who understood the possibility to divide a uranium kernel. Is the power of the first atom bomb of Manhatten Project based on massless energy only?
08 September 2016 7,178 0 View
Is it the momentum of an electron around the atom-kernel or is it a spin around the own axis of an electron as particle?
08 September 2016 4,009 0 View
If I take the formula for Electromagnetic Energy of a photon (E= hf) h is a (Planck) constant value and f can be a common positiv number. Is f a real number or an integer? Quantisation of photon...
07 August 2016 6,387 0 View
07 August 2016 5,208 9 View
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07 August 2016 1,445 0 View
06 July 2016 8,360 2 View
05 June 2016 4,492 76 View
05 June 2016 7,766 1 View
In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...
03 March 2021 1,682 3 View
Light is inevitable for the process of photosynthesis reaction. Naturally sunlight plays the vital role for this process. Light may be of different colours like white, red, yellow, blue etc....
02 March 2021 7,890 2 View
Educational Process
01 March 2021 1,827 1 View
When you observe the presence of Tyndall in an inflamed eye: Does each of the small floating dots correspond to an individual cell or to an aggregate of cells? Does a conventional slit lamp have...
27 February 2021 6,326 2 View
Hi everyone, Please, how can I obtain time series data by country on night-time light (brightness) ? I've tried, but so far all I can find are maps. I am looking for numerical data, especially in...
24 February 2021 8,625 4 View
I want to illuminate a scene (small space) using LED to capture photographs or videos of some tiny objects inside the space. But am not sure if I should use a Laser LED, or simple LED or power...
22 February 2021 4,240 4 View
I am trying to simulate a simplified version of a beam resting on 10 points using Abaqus. The solutions I want to obtain are the Reaction Forces in each resting point or area when applying a...
21 February 2021 3,075 2 View
20 February 2021 2,840 3 View
I am trying to simulate the impact of a sinusoidal force on a Beam, yet I registred this beating signal (Displacement by time). The freaquency of excitation was the same as the first natural...
19 February 2021 5,872 3 View
The regenerated cellulose film was prepared by zinc chloride/H2O system. The zinc chloride had been washed away in the regeneration process, and the wet film which was not dried had uniform...
18 February 2021 9,538 1 View