some goods and intermediates have large energy content, like, if you wanted to use energy from large pv farm in, say, morocco, then it might make more sense to ship bauxite in and aluminum bars out (it takes some 50MJ/kg to make aluminum)
simplicity of the system would be a factor in small, unattended installations like for space heating for single home
if there’s will, there’s a way
all of that without heat pumps too
It is a liquid that after irradiating stores that energy while still cold and can be made to release it in form of heat on demand. but also it’s low grade heat mostly useful for heating and not for electricity generation. It would be simpler to just build long range transmission lines or put energy intensive manufacturing near PV farm in sunny region
it’s transparent too so you can just put pv panel underneath to capture the rest
you get 1.6MJ/kg just by irradiating this thing, nothing else is needed and its storable for months as noncorrosive room temperature liquid
to make ammonia you need to have pv to turn light to electricity then make hydrogen out of it then make ammonia in haber process, each step generates losses and none are practical on small scale
there is a problem that it can heat itself up so hard during decomposition that it can just go on without catalyst
aaand it boils water again
i guess this is partially because chinese opoid users die from bullets and not from overdoses
of course, on a city-sized boat
e2ee is not enough you also need to know what these ends are
Shadowban is when you can see your own post/comment but it’s unsearchable or otherwise unreachable by other people. milder variant is comments hidden by default, some of them look like deleted by mod but it might be automatic. the point of shadowban is that you don’t know about it. this is something different, why it happened to you idk but there is some trade in old accounts for spam purposes, maybe that’s why
lora bitrate and radiated power are tiny and such considerations are only important in peacetime. gps is jammed now routinely and it’s more important than 95% of iot dogshit. telemetry and remote control that matters is either wired or has reserved separate band, like power grid switches. not sure wdym by logistics
you also have to be stealthy and if you emit you’re seen and if you’re seen you’ll be found and soon dead. lora doesn’t help you with that especially if you increase power to overcome jamming. using starlink in iran now for example is a capital offense. last time i’ve checked, irgc ew looks for starlink wifi and they can find it even if it’s renamed because of its distinct signature. it takes less to spot lora. they do not look for uplink for some reason but they try to jam it and downlink too
microwave datalinks might have beamwidths of perhaps fraction of degree, but it’s still not much
there is empirical series of materials sorted from which one is most likely to lose vs gain electrons, but what exactly happens is one of unsolved problems in physics
i think that when locals call a place “the land that god made in anger”, it might be wise to not settle there
You would be probably much better off with pre-made small table of some kind as a base, as it’ll have much wider footprint. If you can’t find anything you like, there’s always an option of bolting together a frame out of perforated steel angle (or something), putting wheels on bottom and piece of wood on top, and bolting the desk mounted version to said frame (you can probably discard its base)
I’m about to bankrupt you, mate https://fr.farnell.com/en-FR/c/switches-relays/switches/standard-pushbutton-switches
this one looks similar, except it’s unpainted https://fr.farnell.com/en-FR/multicomp-pro/mpm19-a03fp-3-jr-3v/pb-sw-spst-no-dm-2a-36vdc-panel/dp/4180151
Stirling engines are woefully inefficient tho, PV panels are better unless you’re intending to supplement heat source with biomass or such. In a climate where most of energy is used for heating and little to none on AC, it just makes more sense to use solar collectors instead of PV because most of energy use will be in form of heat anyway, and per square meter collector will deliver much more. If you can couple excess heat production to seasonal energy storage, this gets you most or all of heat needs year round covered by solar, if you don’t there’s still free hot water in the summer and seriously lowered gas bill through the year. Small PV panel might make sense to keep pumps running or cover some of the rest of needs but won’t shift balance heavily either way. In a place where major use of energy is AC this approach makes no sense and PV panels with daily or a bit longer lasting storage of energy, be it in batteries or thermal (tanks of cold glycol or ice or whatever) would be the way to go, because the most sunny day is also the day when you need AC the most and this way you get most of your energy needs covered