Scrounging Firewood (and other stuff)

[sean donato]

The original 346XP is,a 46cc saw with no primer bulb. The 346XP New Edition came with a 50cc motor and a primer bulb. I never owned the early saw but have had 3 of the NE saws. For a small saw it can rip thru wood. I should have kept one of my 346XPNE saws. I sold my last two after buying a 2nd Gen 550XP.

My 346xp oe, is one of the saws that the kids will get rid of after I die. Cut a lot of wood with it at one point of my life.

 

[benz66]

Unless you are smart enough to construct a working venturi.

The venturi effect over the wings of an airplane enables it to fly. It is also what draws the fuel into a carburetor. The fuel pump just pumps to the fuel bowl. The level of the fuel bowl is determined by the floats, just like in a toilet.

If it can lift an airplane, it can lift some water!

Influence of Bernoulli’s Principle​

"However, Bernoulli’s Principle, which is closely related to Torricelli’s Law, plays a crucial role in the operation of carburetors. Bernoulli’s Principle states that the pressure of a fluid decreases as its velocity increases. In a carburetor, the Venturi effect creates a region of low pressure, which draws fuel from the float bowl into the airflow. This is achieved by shaping the venturi to create a sudden contraction in the airflow, resulting in an increase in velocity and a corresponding decrease in pressure."

Torrecelli theorized that we are surrounded in a "sea of air" and that if you put a tube in water, and evacuated it, the water would rise about 30'. That sounds familiar if you have worked with jet pumps or other low lift pumps. After proving this was true, he then surmised that mercury in a vacuum tube would only rise about 32", again, depending on elevation and other conditions. He proved this, also, then noted that the mercury level changed with weather conditions. A barometer.

Both Bernoulli and Torrecelli contributed a lot to fluid dynamics.