in my pc , i need to control the other user (even i protected with password both administrator and user ) from accessing to specific drives from specific user . i'm able to restrict user from accessing into specific application. i need to protect files also.
Wellit was mostly the diseases that killed the Indians for the Indians weren't used to bacteria that the Europeans were used to. I don't think there was anything else like poison or fire involved, but the Europeans did have guns and bullets which were more advanced than the native Americans' bows
For starters, you will have to take the civil service exam. Check out their website and you will find out all there is to know about becoming a fire fighter.
Not so magical You can consider any surface as a mirror, for example, the water in the lake. The principles are simpler, any surface both reflect and refract light; reflecting light is returned to the side it impact and refracting light is passing through the material and emmit from the other side. Any surface is not homogeneous, so, when light impacts, it will be reflected in different directions from surface point to point, but if you polish the surface as a 'mirror', all the light will be reflected with the same angle and you will preserve the 'image'. Finally you need a back surface darker than the impact surface in order that you can see the image clearly. So is enough to paint black the back surface of a mirror. And that is all. I remember when I was a child having this same question and 'open' the back of the mirror, where the black paint was