Big Spence is the stage name of US actor and director Marcus D.Spencer (born January 24, 1984), who has appeared in a number oflow-budget independent films, notably with direc…tor Jacalyn Evone. (MORE)
Oarfish are bigger than some whales but smaller than others. An oarfish can measure up to 17 meters in length, a dwarf sperm whale only grows up to 2.7 meters, but a blue whal…e can reach 33 meters. (MORE)
This should be a daily concern of every person on the planet. If we continue at this rate, humans will be the cause of another mass extinction. We should work to make a difference, and one way we can do that is to share knowledge. What animals should be protected? What is threatening them? How can you help? I've spent a lot of time researching this, and I hope to share some of that information with you.
People very rarely encounter living oarfish in the wild. However, they have a worldwide distribution (we know this primarily from finding them occasionally washed up on beache…s). However, considering how rarely we encounter them, oarfish are probably data deficient (in other words, we don't know enough about their populations to determine whether they are or aren't endangered). We definitely don't know how many there are in the wild. (MORE)
A rowing oar is made up of several parts. You have the handle, which could be wood (I prefer the grip of this), plastic or rubber. This is for either one or two hands dependin…g on whether it's a sweep blade or a scull blade. The shaft is usually hollow carbon fibre or some other light materiel, approximately four inches in diameter at the collar (the fitting which allows it to stay still in the gate). The blade, or the spoon, is of many different shapes. The three basic shapes are the modern hatchet (asymmetric, like a chef's cleaver), old macon (pronounced soft c, classic oar shape) and older pencil (long and thin). They may or may not have a spine running along the spoon in line with the shaft, and they may or may not have hydrodynamic modifications on the end of the spoon to obtain better grip. The hatchet shape stems from a desire for increased connection and lower slippage. Since the spoon is not moving straight but in an arc, the outer end moves at a different speed to the inner causing slip. The shorter and deeper a blade is the less this occurs. (MORE)
They can't simply go back and forth because otherwise they wouldn't move anything. If a boat moves itself because it pushes the water, then it has to change the position of …the oars (take it out of the water and rotate it) in order to repeat the movement. If cilia also don't change their position, they would simply move the mucus back and forth and it wouldn't get anywhere. Cilia also rotate in another direction to reach their starting point. (MORE)