Gear Ratios When two spur gears (or any other type of gears)are in mesh, the number of teeth in one geardivided by the number of teeth in the other iscalled the gear ratio.Teeth #1 Ã· Teeth #2 = Gear Ratio 2. Gear Ratios and Structures Henri deVick A bout 1000 years ago, three inventions weremade in Europe.peed of Rotation, RPM The spinning or rotational speed of a gear ismeasured in Revolutions Per Minute (RPM).If a gear spins completely around exactly 16times in one minute, itâs going 16 RPM. If itspins exactly 1000.9 times itâs going 1000.9RPM.
In good weather conditions, a wolf can smell its prey from about 1.75 miles away. As the pack of wolves moves closer towards the prey, they will maneuver ahead of the prey for final confrontation. Just by its a sense of smell, a wolf can find and identify other pack members.
Nothing to Turn Your Nose Up At. The notion that the mighty great white can smell blood from a great distance has been central to modern shark mythology. Indeed, sharks do possess some of the most amazing olfactory capabilities in the natural world. Smell is so vital to a shark that two-thirds of its brain is devoted to it. They can detect some scents at concentrations as low as 1 part per 25 million, which translates to about a third of a mile away in the open ocean. Sharks smell through a pair of nostril-like holes, called nares, on the undersurface of their snouts.