Figure 2. Therefore, for comfortable viewing of images on a computer screen it is probably reasonable to place the monitor at about 15 degrees (or slightly lower) below the horizontal line. Such a location creates a preferable visual zone of 30 degrees (+ 15 degrees to -15 degrees from the normal line of sight).hen placed in the wrong position it can force the operator to work in a variety of awkward positions. Working with one's chin tilted upwards, and the head and upper body bent forwards or sideways is common wherever the monitor is improperly situated.
Chromium is a mineral that helps to maintain normal blood glucose levels by enhancing the effects of insulin. Your body also needs chromium for healthy carbohydrate, protein and fat metabolism. Rich sources of chromium include processed meats, broccoli, green beans, mushrooms and whole-grain products, particularly bran cereals. Refined grains have been shown to have less chromium content than whole grains.
Properties of chromium. Chromium is a transition metal in Group 6 on the Periodic Table of Elements. In its pure form, chromium is a steel-gray, lustrous hard metal that has a high polish.It has many compounds that are all colored. [See Periodic Table of the Elements ].Of the compounds, the most important are the chromates of sodium and potassium; the dichromates; and potassium and ammonium chrome alums.hromium is a transition metal in Group 6 on the Periodic Table of Elements. In its pure form, chromium is a steel-gray, lustrous hard metal that has a high polish.