Hirshberg Method

Hirschberg's method is one of the methods for determining the distance between two points on a plane, which was developed by the German ophthalmologist Johan Hirschberg in 1870. This method is widely used in optics and other fields where it is necessary to determine the distance between two objects on a plane.

Hirshberg's method is based on the use of two parallel lines that intersect at a point located at a distance d from one of them. Then, using a formula to determine the length of a line segment between two points, you can find the distance between these lines.

The formula for determining the distance d between two parallel lines intersecting at point P is:

d = (a + b) / 2,

where a and b are the distances from point P to each of the two parallel lines.

To apply the Hirshberg method, it is necessary to draw two parallel lines, the distance between which we want to determine. Then you need to measure the distances from the point of intersection of these lines to each of the lines. Finally, using the formula, we can find the distance between the lines.

Example:

Let us have two parallel lines that intersect each other at point P. The distance from point P to the first line is a, and the distance from point P to the second line is b. We want to determine the distance d between these lines.

Using the formula we get:

d = (a + b) / 2.

If we know the values ​​of a and b, then we can easily calculate the distance d.

For example, if a = 5 cm and b = 10 cm, then:

d = (5 + 10) / 2 = 7.5 cm.

Thus, the Hirshberg method makes it easy to determine the distance between two points on a plane and is widely used in various fields of science and technology.

The Hirshberg method is a method for separating a mixture of amino acids into ions based on hydrophilicity (electrophoretic). Mixed amino acids are separated based on differences in the size and composition of the side chains present in some amino acids, which creates differential selective permeation for the binding of each ionic compound, creating a charge gradient along the electrophoretic