VIDEO: How much volume does a person have

Determine the volume of the human being mathematically

You can divide the human body section by section into geometric bodies - arms, legs, neck and torso are cylinders and the head is a sphere. This is how you can determine how much volume a person has.

1. Measure the circumferences of the body parts concerned and divide them by pi and by 2. You get the radii of the respective auxiliary bodies,
2. Then find the length of the arms, legs, torso, and neck. Do not ask how many times you have to measure, it depends on how many bodies you break the human up into.
3. The volume of the head is V._head = (4/3) pi r_head³. The volume of a cylinder is V_cylinder= pi r² H.
4. Now add the partial volumes that you have calculated in this way. So the volume of a person is V_person= V_head+ V_hull+ V_throat+ 2V_poor+ 2V_leg.


Calculate the density of a sphere - this is how it's done

Unknown sphere, unknown material - so it lies in front of you. How can you ...

This will only give you an approximation, but it will give you an idea of ​​how much volume you have.

How many times a cm³ fits in people

The only very exact method is to calculate the volume using the displacement. If you don't have a graduated cylinder that is precisely graduated and at the same time large enough to be immersed in, you need to do the following:

1. Fill a vat large enough to be completely immersed in it to the brim with water. But you have to fill the vat with a measuring cylinder so that you know exactly how much water is in it. It is better not to ask how many times you have to fill and empty the measuring cylinder, it is better to write down how often you have to do it, otherwise you can start over.
Immerse yourself completely in the vat, as much water will flow out as you displace in volume.
2. Get out of the jar and read how much water is left in it. You can find out how much volume a person has by calculating the volume of water that has been spilled according to Formula V_before+ V_after calculate.

A cumbersome but precise method of finding out something about a person's volume.

Determine volume by mass

Whether you can swim or not, you will have noticed that you are neither like a cork on the water swim, still sink like a lead ball, i.e. the density of a person should be about as great as that of the Water.

• The density of the water is around 1 kg / l or 1 kg / dm³ or 1 g / cm³if you convert that.
• There is a connection that density is mass divided by volume. rho = m / V. The volume is therefore V = m / rho.
• So if you weigh 55145 g, you have a volume of 55145 cm³, because:
• V = 55145 g / (1 g / cm³) = 55145 cm³.

So the answer to the initial question is: about as much cm³how man weighs in g.