Oil burner keeps tripping the reset button: That would be the little red button on the box at the oil burner itself. If your oil burner stops running the first thing you should check is the reset button. If you press it and the burner fires up then that was the problem.
How far can sharks smell blood? A: A great white shark can smell blood in a radius of approximately 1/3 mile or as low as 1 part per 25 million.. Not all sharks have this strong of a sense of smell; however, all sharks do have a sense of smell that is superior to many animals. Continue Reading.
Sharks Can Detect a Single Drop of Blood in the Ocean! Sharks are often portrayed as having an almost supernatural sense of smell. However, reports that sharks can smell a single drop of blood in a vast ocean are greatly exaggerated. While some sharks can detect blood at one part per million, that hardly qualifies as the entire ocean. Sharks do, however, have an acute sense of smell and a sensitive olfactory system--much more so than humans.