- published: 06 Dec 2012
- views: 24650
A reason is a consideration which justifies or explains.
Reasons are what people appeal to when making arguments about what people should do or believe. (Those are reasons in the normative sense.) For example, the fact that a doctor's patient is grimacing is a reason to believe the patient is in pain. The fact that the patient is in pain is a reason for the doctor to do things to alleviate the pain.
In another sense of the term, reasons are explanations of why things happened. (These are reasons in the explanatory sense.) For example, the reason why the patient is in pain is that her nerves are sending signals from her tissues to her brain.
Normative reasons (AKA justifying reasons) are often said to be "considerations which count in favor" of some state of affairs (this is, at any rate, a common view, notably held by T.M. Scanlon and Derek Parfit).
Explanatory reasons are considerations which serve to explain why things have happened—they are reasons why events occur, or why states of affairs are the way they are. In other words, "reason" can also be a synonym for "cause". For example, a reason why a car starts is that its ignition is turned. In the context of explaining the actions of beings who act for reasons (i.e., rational agents), these are called motivating reasons—e.g., the reason why Bill went to college was to learn; i.e., that he would learn was his motivating reason. At least where a rational agent is acting rationally, her motivating reasons are those considerations which she believes count in favor of her so acting.
The rotary engine was an early type of internal-combustion engine, usually designed with an odd number of cylinders per row in a radial configuration, in which the crankshaft remained stationary and the entire cylinder block rotated around it. Its main application was in aviation, although it also saw use in a few early motorcycles and automobiles.
This type of engine was widely used as an alternative to conventional inline engines (straight or V) during World War I and the years immediately preceding that conflict. They have been described as "a very efficient solution to the problems of power output, weight, and reliability".
By the early 1920s, however, the inherent limitations of this type of engine had rendered it obsolete, with the power output increasingly going into overcoming the air-resistance of the spinning engine itself. The rotating mass of the engine also had a significant gyroscopic precession: depending on the type of aircraft, this produced stability and control problems, especially for inexperienced pilots. Another factor in the demise of the rotary was the fundamentally inefficient use of fuel and lubricating oil caused in part by the need for the fuel/air mixture to be aspirated through the hollow crankshaft and crankcase, as in a two-stroke engine.
Rotary can refer to:
Is it wise to come to me
To guide you spiritually
Dead eyes stare back from the void
Reflecting what I see
I am the key that locks the door
The link between the worlds
Take my hand
Dare to walk with fire
Let the dead rest in peace
Step aside leave them be
Let the dead rest in peace
Sacrilege, final sleep
I am here to satisfy
Your curiosity
If you think it's worth the risk
To be stuck with me
There are things you cannot see
That's why you come to me
Take my hand
Dare to walk with fire
Let the dead rest in peace
Step aside leave them be
Let the dead rest in peace
Sacrilege, final sleep
Was it wise to come to me
To guide you spiritually
Your dead eyes stare back from the void
Now you're stuck with me
Let the dead rest in peace
Step aside leave them be
Let the dead rest in peace
Sacrilege, final sleep
Let the dead rest in peace
Step aside leave them be
Let the dead rest in peace