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EMPs do not affect small devices that aren't plugged in, they simply don't have the size to couple that much EM energy.

What is potentially affected is large power lines, railways, street lights, copper-networking equipment, some industrial systems, etc..


um.. you meant booster EXPLODED in the Gulf of AMERICA?

Looked like it was a soft touchdown until engines shut off at the "catch" height (simulated) and then they activated the TFS.

“Exploded at a specific time”

Exploded safely as planned during an off shore divert from the tower catch attempt, after making a controlled hover in mid air slightly above the water.

And also spewing green flame from the disintegrating copper of the engine

The company is built around Golden Dome, not Moon/Mars

Ask your favorite AI about Michael D. Griffin and Pete Worden and their connection to SpaceX


Aren't sodium higher density (at least in terms of energy per weight) than LiFe?

Maybe you're right in terms of energy per volume. Sodium are very light weight in my experience.


No.

The ratio of the stored charge per mass is 23/7 = about 3.3 times higher for lithium than for sodium (7 and 23 are the atomic masses of lithium and sodium), and the voltage can be higher by around 10% for lithium, leading to an even higher energy per mass ratio.

Nonetheless, both sodium and lithium are only a small fraction of the mass of lithium-ion batteries and sodium-ion batteries, so the difference in stored energy per mass is much smaller than for the pure metals.

In practice that means that today LFP batteries and sodium-ion batteries have about the same energy per mass ratio (and similar prices), with both having a lower specific energy than the more expensive NMC lithium-ion batteries.

For now, sodium-ion batteries are very new, so they are still a little more expensive than LFP, but eventually they will be significantly cheaper.

Already now, they have important advantages, so there are applications for which they are preferable even when still more expensive, e.g. where it must be possible to charge them at very low temperatures or where it must be possible to discharge them completely.


No, sodium batteries are less energy dense.

Can you smell the AI furnaces upwind?

You mean the smell of exhaust from computer fans? It boggles my mind how Americans are dying for manufacturing to return, as if a chemical plant or iron smelter is so much better than a benign data center

They are basically jet engines running without proper pollution control because they are "temporary" https://www.tomshardware.com/tech-industry/data-centers/elon...

Great book, one thing it missed is how these satellite constellations are also funded by the government for their dual use potential in Strategic Defense Initiative development (now officially called Golden Dome)

https://en.wikipedia.org/wiki/Golden_Dome_(missile_defense_s...


Golden Dome

https://en.wikipedia.org/wiki/Golden_Dome_(missile_defense_s...

Basically the real purpose of the company (not going to Mars obviously).


Not filling up for minutes.. they said it takes 2-6 hours to recharge using external equipment.


Huh? They said clearly that the car recharges them itself. Source?


That's a hypothetical (marketing?) future, not what they have now.

https://insideevs.com/news/812205/tesla-roadster-replenishes...


https://wikipedia.org/wiki/Golden_Dome_(missile_defense_syst...

All you need to know about Starlink and why it's getting a free pass.


Oh Rocket Lab, a CV thrown away in vain! Please answer my application, please give me a sign!


Neutron nowhere to be seen. A rocket thats on falcon 9 scale which is already being deprecated. Sure there’s chance neutron to be cheaper than starship and rocketlab does bunch of other things. But I’m pessimistic.


Golden Dome is the name https://en.wikipedia.org/wiki/Golden_Dome_(missile_defense_s...

It's a ground-targeting offensive system to be clear, not just missile defense.


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