Diameter of pipe - does it affect the flow?

Suppose our guess is - “Pipe with a narrow diameter will reduce the blood flow”

How can we test this?

One way to check this is following -

For this you will require

2 buckets
An old plastic bottle like a cold drink bottle, water bottle etc that can be easily pressed.
Two pipes about 2 meters with different diameters

1. Fill one of the buckets with water. There should be enough water in the bucket to submerge the plastic bottle.

2. Take the pipe and the plastic bottle and put one end of the pipe inside the bottle.

3. Now put the plastic bottle and the pipe inside the bucket filled with water.

4. Keep an empty bucket nearby.

5. Take the free end of the pipe and hang it in the empty bucket.

6. Now hold the plastic bottle with one hand. Make sure the bottle is inside the water.

7. Squeeze the bottle repeatedly. You will see that water will start flowing from the pipe into the empty bucket.

This is how heart pumps blood into blood pipes which then carry the blood to different organs.

8. Measure the water that flowed into the empty bucket in 1 minute.

9. Repeat the procedure for second pipe with different diameter

10. Measure water that flowed into the empty bucket again in 1 minute.

[Contributed by administrator on 14. März 2018 20:01:33]