Item size zero

Graphs - schematic designation in many areas.
Model of real objects.
Circles are vertices, lines are graph arcs (connections).
If the number next to the arc is the distance between points on the map or the cost in the Gantt chart.

In electrics and electronics, tops are parts and modules, lines are conductors.
In hydraulics boilers, boilers, fittings, radiators and pipes.
On the map are cities and roads.
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From the school math problem:

From point A to point B left the bus. The distance between the points is 30 km.

What if the distance is 0?


Reduce the distance from the ridge of the roof to the ground to zero. Two-storey house turns into a dugout.


Reduce the distance from the boiler to the radiator (reduce the length of the pipes) - we get the 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 the electrical conductors led to the creation of microchips.

Length, height and width are geometric dimensions. Measurements of the real (visible) world.
Measurements can be more abstract:

• Temperature
• Time
• Weight
• Density
• Thermal conductivity
• Electrical conductivity
• Strength
• Fragility
• Speed
• Acceleration
• Energy

etc.

Heat conduction is the ability of material bodies to conduct energy (heat) from the hotter parts of the body to the less heated parts of the body by means of 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, create a vacuum.
A similar technology already exists and is being sold. Called screen-vacuum insulation. Panels with thermal conductivity equal to 0.004-0.006 W / m * K.
For comparison, it is 10 times less than that of mineral wool and 50 times less than that of a brick.
As a result, the thickness of the walls can be reduced 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.

Successful inventions!