Primarygun

Perhaps they are the same thing

Light wave can be attracted by gravity. If we describe photons as electrons, it can be explained normally, isn't it? Therefore, I think Electron=Photon arises.

I don't know why how the experiment exactly works. I browsed several web sites and found some answers. Here's a pretty good web site about the casein http://en.wikipedia.org/wiki/Casein

Once I've posted a thread or a reply, I could search my post by entering its content on the google. Why?

Have you learnt the symbol of mod? Set two equations connecting N and d. I give you an example. If F is divided by f, the remainder is 1. F=1+ft(t:integer) Now, I think you know how to solve it.

Electron microscope makes use of the collisions of electrons on the object to form the image. It's quite similar to the way which photons hit the object and reflect to give us an image. Moreover, photons form electric field , it is also similar to electrons. Their masses are very small as well. Is there any example/evidence to give the contradiction?

Why a glass barrier can seperate a fire? Energy can transfer even there's no particles. I can hardly imagine the way the glass act as a barrier.

Thanks. Actually, I think it is impossible to make a solid of Zinc ions

Fluid in the thoracic wall? Isn't the wall comprise the outer membrane?

I am currently studying for a public exam which is more or less equivalent to GCSE. At my stage, I think it's the best way to find HCF and LCM. Also, you may find out how many factors does the integer bear. These are what I think.

I still can't get it. Why zinc still accepts the e-?

What seperate the thoracic wall and the pleural membrane?

1.If a metal(Cu) is negatively charged, and is put to touch an another neutral metal(Zn), the extra charges are shared by both metal. But, doesn't metals tend to lose e-? 2.Why production of charge by friction cannot use a conductor and an insulation? My Guess: The charge will flow back to the metal if the charge from metal went into the insulator. Something that reject my thought: Metal loses e- more readily than an insulator, so it should not absorb e- unless the insulator does not. To sum up, I think there are something laws or theory in physics which explains the readiness of losing electrons and the dealing with extra charge. Please tell me.

I heard that rib besides protecting our lungs, promoting the breathing action, it also produce red blood cells. Is it true?

Temperature is the measure of average kinetic energy of an object. If I put a thermometer in a pencil case, and I throw the pencil case away, the reading does not change. However, the kinetic energy of any particles of the pencil case did vary. Why?

Electromagnetic waves can travel through vacuum while the other cannot. They can also travel at a lower speed in other media.

You Got (u/g+t)?

http://hk.geocities.com/quarkquarkquark2001/aaa.pdf please use flashget to download it.

I got a pdf locked by some password. I could open the file but I am not able to combine several pages into one due to the lock. How can I unlock this document ?

Rust is hydrated Iron(III) oxide, i.e. Fe2O3.xH2O

I read a book. If a the two solutions are connected by a salt bridge, assume both solutions are Iron(II) sulphate, electrodes are the above ones, the solution turns yellow.

How about if I use a porous barrier to separate the two region of the same solutions?

How about if I use Iron(II) sulphate instead? I guess H2 at +ve and Iron(III) ions gathering at -ve

Lithium chloride is the electrolyte? What things have a more negative value of SRP than Li?

What happens if I use Iron(III) sulphate as electrolyte with silver electrode and gold electrode? Can this be an electrolysis set-up? I guess Iron(II) sulphate and hydrogen gas are the product. By the way, how does a lithium cell work? why the standard reduction potential for 2H+(aq)+2e----> H2(g) is 0? That implies H+ is not reactive.