Graphs are a schematic symbol in many areas.
Model of real objects.
Circles are vertices, lines are graph arcs (connections).
If there is a number next to the arc, it is the distance between the points on the map or the cost on the Gantt chart.
In electrical and electronics, vertices are parts and modules, lines are conductors.
In hydraulics, boilers, boilers, fittings, radiators and pipes.
The map shows cities and roads.
From a school math problem:
A bus leaves from point A to point B. The distance between points is 30 km.
What if the distance is 0?
Reduce the distance from the roof ridge to the ground to zero. The two-story house turns into a dugout.
We reduce the distance from the boiler to the radiator (reduce the length of the pipes) - we get a Russian stove.
As you may have guessed, the technology works both ways.
You can either reduce to zero or increase to infinity.
Reducing the length of electrical conductors led to the creation of microcircuits.
Length, height and width are geometric measurements. Measurements of the real (visible) world.
Measurements can also be more abstract:
- Temperature
- Time
- Weight
- Density
- Thermal conductivity
- Electrical Conductivity
- Strength
- fragility
- Speed
- Acceleration
- Energy
etc.
- the ability of material bodies to conduct energy (heat) from more heated parts of the body to less heated parts of the body through the chaotic movement of body particles (atoms, molecules, electrons, etc.).
How to reduce thermal conductivity to zero?
Right.
Reduce the number of atoms, molecules and electrons. That is to create a vacuum.
Similar technology already exists and is being sold. It is called screen-vacuum thermal insulation. Panels with thermal conductivity equal to 0,004-0,006 W/m*K.
For comparison, this is 10 times less than mineral wool and 50 times less than brick.
As a result, the thickness of the walls can be reduced by so many times.
And if you reduce the mass to zero ...
In other matters, I will not deprive you of the joy of new discoveries.
Happy inventions!
Source: habr.com