Self-replicating machines for easily scalable production

The ability to create self-replicating machines can give some very useful benefits. So what is the problem with creating this type of stuff?

Let’s say we have two pieces of equipment – 3d printers and robotic arms. These items are already available and are easy to create.

It looks like they are enough to create self replicating machines. 3d printers are able to print any details for arms and printers. Robotic arms are able to assemble other arms and printers. Both equipment items are able to create almost any other kind of stuff.

Basically, both arms (i.e. manipulators) and 3d printers consist of servomotors, wires, chips and structural mechanical elements. They all can be easily 3d printed, that’s no doubt I guess.

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Advanced wind electricity generation

Well, when it comes to electricity generation it is important to design units to be scalable enough.
With wind turbines becoming popular nowadays it is very important.
As you know, currently wind turbines are placed on surface, mostly at hills and small mountains.
But why placing it on surface, where the wind speed is very limited ?
Why not placing it in some cloudy heights, where the wind constantly flows at really large speeds 24 hours a day ?

One can argue that it is technically difficult to get heavy turbines at heights and costly transport energy to the land via cables.
But what about using wind kite farm cell structs ?
These kind of units can be easily scaled via structs attachments and are capable of carrying huge amounts of generating fans.

Moreover, in this case there is no need of placing heavy generators in kites and send them to air.
You can easily transfer the torque moment from fans in the air to the generators on land using the cords, connecting the kite to the land.
That means it is easy to create really large generating volumes in the air and transfer huge amounts of useful work to the land.

Also kites and fans are very cheap in mass production and can be easily installed almost anywhere.
If you think that wind power is just not enough – think about heavy hurricanes and typhoons that deal really a lot of damage to civilians all around the world.
This scalable devices can easily dissipate all that energy and convert it to useful electricity.
I guess an array of 10-50 small cheap generating cubes like 100-400 meters in length can easily handle small hurricanes.

So why are we still using ineffective heavy structures with generators instead of this kind of structs ?

For more discussions on this topic – take a look at stack physics

The correlation between scales of time and space

I guess it is quite well known that there is an empirical correlation between scales of time and space.

That means that small things are usually move / rotate relatively (compared to its sizes) faster then the large ones.

For example ants move relatively really fast, compared to large animals.
The bacterias are much much faster.
Atoms and electrons live in quite short times, in about 10e-7 seconds scale.

On the other side of scales planets move relatively slow (day or year), stars and galaxies are quite static for our time scale.

In general it looks like the scale of time is almost proportional to the scale of space.

How to explain that using standard physics ideas ?

Is it a kind of inertia properties or something like that ?

For more discussions on this topic – take a look at stack physics

Rotation and common absolute coordinate system

Got an interesting observation a couple of days earlier, could you please comment it or point to some mistake.

As everyone knows, there are lots of stars in our universe.
Stars are in common just big amounts of self-gravitating collapsed spheres of hot gas and plasma.

If this kind of sphere is rotating, then its rotation can be measured by its poles collapse. It means we can easily make a photo of it, calculate difference between equatorial and polar radiuses and get its rotation speed.

So a rotation of any star can be easily detected.
This rotation is measured relative to some kind of absolute inertial non-rotating coordinate system, same for all stars.

Since a rotation can be detected, then a simple line movement can be detected also (just speed, correlated with rotation of a closest star).

That means that there is a common absolute inertial coordinate system (a kind of a base one), in which every star is rotating.

But getting this special base system is not common to physics and it is a little bit confusing to me.

Is there really that kind of special absolute coordinate system, or it is just some logical paradox type of stuff ?

For more discussions on this topic – take a look at stack physics

Piezoelectric electrogenerating footwear

There is an another fun useful application of the piezoelectrical phenomena.

Lets take a look at common shoes. They commonly use elastic soles for a dumping moving effect during walking/running.

Imagine the same shoes, but with piezoelectric elements on its sole (just same as in the piezoelectric lighter) with the ability to produce charge at any type of tension – compression or stretching.

Along with dumping effect they will produce a lot of electricity when moving, which can be gathered and collected lets say in attached accumulator and used for example for charging phones and devices, lighting, etc.

For more discussions on this topic – take a look at stack physics

Piezoelectric car tires

There is an another fun useful application of the piezoelectrical phenomena.

Lets take a look at modern car tires. They commonly use gas pressure to achieve elastic behavior for a car moving along the road.

Imagine the same wheels, but with piezoelectric elements (just same as in the piezoelectric lighter) with the ability to produce charge at any type of tension – compression or stretching.

Along with dumping effect they will produce a lot of electricity when riding (in any direction), which can be gathered and collected lets say in accumulator.

And if a car is using an electrical power source engine, these feature will let the generators to be charged continuously during the ride and make electrical powered vehicles even much more economical.

For more discussions on this topic – take a look at stack physics

Static piezoelectric truss farm structures with gravity support reaction

This post is about some fun cases of static piezoelectric structures.

Lets imagine some static large tall truss farm structure (like transmitter towers).

Also lets say it is axisymmetric and heavy enough to create high loads on lower levels.

Lets attach to deformable trusses a special piezoelectric elements (just same as in the piezolighters) with the ability to create electric charge at both compression and stretching. They are all wired to some electric grid.

Additionally lets install some wind stopping load on the top of this installation (let it be some large cube).

Since the structure is axisimmetrical and is loaded by wind randomly, so all the trusses with piezoelements will experience random cycles of
compression and stretching.

With each cycle they will produce some electric charge which can be gathered and collected in attached electric grid.

So in general we can get an infinitely scalable power generating structure, just increasing the weight of structure and number of piezoelements.

Does that means it is a kind of almost infinite energy source, based on gravity and the forces of support reaction from planet surface ? Is it a conversion of gravity to energy, or just something else ?

Also lets imagine a planet/satellite (like Moon or Mars for example) and built in very large structures on it like these ones, generating power and sending it to some remote location. What about the law of energy conservation ? Where the energy is taken and what will happen to that planet in time – will it slow on its orbital movement or something ?

I guess there is some kind of logic/physical paradox in these ideas, but just can’t find any obvious mistakes in it. Could you please comment it ?

For more discussions on this topic – take a look at stack physics