Sure, you can get bifocal lenses where the top is for far away and the bottom is for computer distance. But unless you hold your reading at the same distance from your eyes as your computer screen, they won't work for close up very well.
Piercing your skin with a bunch of tiny little needles, may not sound appealing at first, but do the cosmetic benefits of the dermaroller outweigh the negative? At first glance, a derma roller may appear to a miniature barbaric torture device, but it has in fact become one of the most innovative approaches to skincare treatment in years. Whilst the science behind derma roller is not impressive, the results are apparent. Perhaps not for wrinkles or signs of aging.
Surface Grinders are machines that can make a surface of a part very flat, very smooth and very parallel to the face of the part that is mounted to the machine. Surface grinders usually have a spinning grinding wheel suspended over a moving bed. The bed moves the part back and forth under the grinding wheel removing an extremely small amount of material at a time, sometimes down to just a ten-thousandth of an inch (o.0001â³) in order to make a precision part.