un poco más de strokes.

Michael R. Dobbs, MD

UK Stroke Neurologist, Stroke Program Director, UK HealthCare

By Raija Nokkala

The Strokes

This stroke, was looking back at me but never winked an eye.

The power stroke. Adult Bald Eagle digs deep to gain some altitude with its catch. Bombay Hook NWR, May 2023.

Lisa Bellamy, RN

UK HealthCare Stroke Program Coordinator

EEC 4 Stroke 125cc Dirt Bike

Julian

This is a diagram that shows the power STROKE of different engine configurations.

I like this diagram because it explains why a V8 has that nice rushing/roaring exhaust note and a four cylinder has ..ahem.. the fart-can effect.

The exhaust note is, of course, driven by the timing of the exhaust valve in each cylinder. When an exhaust valve is open that cylinder is making noise. So, the combination of all the cylinders doing their thing, makes the exhaust sound the way it does.

Even though this is a diagram of the power stroke, the exhaust stroke would be identical. Then, if one were to draw the exhaust valve duration (time that it's open) it would be similar, but the black bars would all be shorter (the exhaust valves are not open for the entire exhaust stroke.

So, this is why a V12 sounds like heaven and a 4-cyl ..uh.. doesn't.

Swimmers learn four types of strokes. These include: backstroke, breaststroke, butterfly, and freestyle. In competition, swimmers can take what they have learned and push themselves.

Rowers on the Yarra River.

Stroke art fair 2013, München

uploaded 11/15/11

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digital painting: morning glory

Baby python felt surprisingly soft.

Swimmer in San Francisco Bay.