Monday, April 18, 2016

Engine Knocking and Fuel Octane

Engine Knocking and Fuel Octane


We made some progress on the topic of octane, or fuel type. There are named and numbers assigned with octane, and they are regular, plus, and premium. What are the main differences of these names? Octane is the ability for the fuel types to resist premature detonation. This results in premium gasoline being able to detonate later than regular gasoline. As a result, putting regular gasoline into an engine that requires(see previous post about tips for car owners) premium gasoline can result in the gasoline burning too soon, causing metallic clicking sounds in the engine. This sound is not only annoying and noticeable, but it is also bad for the engine. If you, as a car owner, experience this in your car, you may have purchased the wrong octane of oil or a bad load. If you suspect that this is the cause of your engine creating these clicking sounds, then wait until the next refill or get a checkup to see what the problem is because it may be more serious than just the wrong octane of oil.

Friday, April 15, 2016

Pseudobiceros Hancockanus

Flatworms are interesting, especially this species. Not only because they’re pretty much flat, but the Pseudobiceros Hancockanus has a very interesting mating process. That’s not the only thing that is interesting about them though. They move very efficiently and rather long distances through oscillations in the sides of their body.
How do these flatworms reproduce? They have a mating ritual called penis fencing in which the two worms essentially fight with their penises, lasting up to an hour. When one finally wins, the winner becomes the father and the loser becomes the mother. They actually reproduce sexually, by injecting sperm either into the other worm or by releasing it onto the skin of the other worm, resulting in the possibility of it entering through open pores in the receiving worms body.