Why is it good that humans cannot digest cellulose? Why is graphite soft and slippery? Why do exoskeletons shed? Why does electrocuting a nerve stimulate a response? Why is graphene used in pencils? Why does the crust float on the mantle? Why does air resistance increase with speed? Why is...
For graphite drawing pencils on the market, the lightest is 6H, while the darkest available is8B. The higher the number in each grade, the lighter or darker it is. So a 6H will be lighter and harder than a 2H, and a 8B will be much darker and softer than a 2B....
Mobile gaming is booming now more than ever. As more users appreciate the convenience and accessibility of mobile gaming, the demand for a capable smartphone continues to soar. Of course, there are beastly gaming-oriented smartphones for serious and competitive gamers, but they come with an expen...