morganparkar

Hi Friend, one of several possible interactions that can occur between the atoms of an object and an incident X-ray. The interactions nearly all consist of interactions with the electron cloud around the atom. At the energies used in diagnostic imaging, only two types of interactions occur, scattering or absorption. In absorption, all of the X-ray energy is taken up by the atom and is transferred to an electron, which is ejected from the atom. Thanks

Hello Friend, The apparatus for collecting radiant energy and converting same to alternate energy form includes a housing having an interior space and a radiation transparent window allowing, for example, solar radiation to be received in the interior space of the housing. Means are provided for passing a stream of fluid past said window and for injecting radiation absorbent particles in said fluid stream. The particles absorb the radiation and because of their very large surface area, quickly release the heat to the surrounding fluid stream. Thanks, Parkar

Hi Friend, Gravitation is a natural phenomenon by which objects with mass attract one another.In everyday life, gravitation is most commonly thought of as the agency which lends weight to objects with mass. Gravitation compels dispersed matter to coalesce, thus it accounts for the very existence of the Earth, the Sun, and most of the macroscopic objects in the universe. Thanks, Parkar

Hi, Here i tell you ur answer. The electromagnetic interaction is mediated by the constant exchange of photons from one charged object to another. The magnetic field is really just a classical approximation to the photon-exchange picture. In a moving reference frame, a magnetic field appears instead as a combination of a magnetic field and an electric field, so electric and magnetic fields are made of the same "stuff" (photons). Thanks, Parkar

Hi Friend, The magnetic field forms one aspect of electromagnetism. (See also relativistic electromagnetism.) In a simplified form the magnetic field can be thought of as the relativistic part of an electric field.

Hi Friend , Here i suggest one my exmple,, This done up to a 9-volt battery to do this. It was great, until the 9-volt started to die nd I had to replace the relatively expensive bastard multiple times. Then i realized that I could simply chop off the end of an old phone charger and strip the coating off the ends. This was also great until about an hour later when the submerged wires had completely disappeared! This hadn't happened at all with 9-volts. Are there wires I can buy which would be more resistant or should I get the electricity from a different source?

Hello Friend, The center of the Earth is a plumbline would be such a line, if we have people holding a plumbline everywhere on earth, and someone draw an accurate line through it, would they all meet at one point ?

Hi, Researchers have shown that arrays of vertically grown carbon nanotubes could be used as the catalyst in fuel cells. The carbon nanotubes, which are doped with nitrogen, would be much cheaper and longer lasting than the expensive platinum catalysts used now.

Hi, There are several ways. A natural fog (cloud or ground fog) is formed by condensation of vapor as the temperature drops below the dew point. A thermal fogger heats an oil-based liquid so it can condense in ambient air. Small droplets can also be created by pumping liquid through a small orifice; by slinging liquid from a spinning disk; by ultrasonic excitation; and by turbulent zone atomization. Foggers use a high turbulence vortex air nozzle to atomize liquid into tiny droplets.

hi, I will give the example how to calc pH. NaHCO3 + CH3COOH → CH3CO2Na + H2O + CO2 (gas) in the titration(note that this is pH titration not volumetric) of weak acid and a weak base a titration curve with no equivalence point is obtained so pH at endpoint is difficult to determine, the way out is to titrate the vinegar against a strong base and the baking soda against a strong acid .you would only get pH7 if u were using a strong acid (HCl) and a strong base (NaOH). if u were doing a titration of weak acid(acetic acid) and a strong base (NaOH) then the resulting pH is easy to determine.

hi, Ya you are absolutely right.

Have great scope in research companies. eg. pharma and laboratories.

it is a good idea to have a refined topic and to know a little about it.

Hi, I believe radon changes colors depending on temperature. Are you just looking for an example of a gas that changes colors or does it have to be a gas you could use in a real-life setting? Also, the atmospheric gases (nitrogen, oxygen) change color as they are ionized by exposure to an electromagnetic field (producing aurorae).

Hi friend, I can't explain the whole procedure in this post.It's very difficult for me.I have the source code but i can't post it because it's very long.