Michael Sinko
2.2K posts
Michael Sinko
@Physburgh
Physicist from Pittsburgh
Walnut Creek, CA Katılım Ekim 2011
630 Takip Edilen531 Takipçiler
Dog fooding. Just a few ways SCS employees have used our services as of late
Shock tab
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@toneoutdoors @ian__villa I’m excited by the idea of a quieter leaf blower
But really don’t want to have to buy into a new battery system.
Any chance of adapters?
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@CJHandmer But you shouldn’t need to use the orbital diameter as an antenna baseline for Tx
With a whole constellation for Rx, one satellite might be sufficient for Tx
If one satellite isn’t enough, use a couple nearest neighbors with direct links to get sufficient position/time synch
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@CJHandmer Claude says the constellation would need clock synchronization within 5-10ps and 2-3mm position accuracy for phase coherence
GPS is ~150ps & 5cm in orbit using IGS RTS
Two weeks of post processing enables IGS to hit 75ps, with 2cm orbit positioning
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I think this is actually just barely doable. A Mars radio constellation that picks up rover signals and retransmits to Earth as a synthetic aperture array.
Casey Handmer@CJHandmer
Imagine if NASA spent ~$100m on Starlinks on Mars and could just stream rover video back to Earth.
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Put my GoPro in a vacuum chamber to video something while pumping down
Pull it out half an hour later and it’s really hot
Remembered that GoPros dissipate heat poorly in atmosphere anyway…
Can someone give me a space data center radiator pls?
My camera is cooking itself
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@jwt0625 Depends on definitions
Does an H100 in space count?
Does a server rack next to a dil fridge count?
Need scale definitions
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asking the real question: do you think we'll get colder-than-space dilfridges in data centers right next to the crazy high power density racks first, or data centers in space first?
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@johnarnold @KelseyTuoc I thought it was clear that he plans to live forever?
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I understand and agree with many criticisms of philanthropy. But practically, fortunes have to go somewhere. There are only 3 options: philanthropy, heirs & govt. If not nonprofits, is Peter Thiel's plan to give $10B+/child? I'm more skeptical of that than he is of philanthropy.
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This is just to say that
Whoever decided that
Car wiring harnesses should provide
Nutrition to rodents
Should Have A Nice Day
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@jlcjak Better yet, measure the inductance of your capacitors!
Had to talk with our supplier because their sample caps were 30% higher inductance than the spec they claimed.
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@Chrismholt @lukeweston Those modular chambers are nice
I started to build I dilution refrigerator in one a few years ago before the startup went under.
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I have finally progressed beyond pickle jar high vacuum setups. What should I do first with my turbo pumped vacuum chamber?
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Got a new UV / MOPA fiber laser to play around with.
Exploring ways to build PCBs at home quickly.
Check out how incredibly well it removed the solder mask. It even exposed the FR4 fibers. 🤩
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Anyone who has ever published a podcast should lose their right to vote.
Steven Crowder@scrowder
This is how to fix voting in a constitutional republic: 1. Only those in mandatory selective service get to vote 2. Pass the SAVE Act and ensure only legal citizens are voting 3. Have at least three years of gainful employment and are currently paying taxes 4. One vote per household, the standard throughout most of human history Those who only stand to gain will always vote for more gain.
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@the_engi_nerd @CasualArtyFan Quite literally what the CIA did to the PLA
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@CasualArtyFan Let’s give our adversaries another lever to pull to corrupt officers, “oh you need $300k to meet the qualifications for the next rank, eh?”
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@KelseyTuoc Agreed
I was a supporter in 2020 and before, and I think her campaign plans and staff that influenced and joined the Biden admin had a positive impact, but so much of her work in the senate has been a disappointment.
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Elizabeth Warren turned out to be one of the most profound disappointments imaginable as a Senator. Presented as a technocrat interested in what works, actually the absolute worst of the slopulists.
Igor Bobic@igorbobic
Warren says the housing bill does *not* have a drafting error, as Schatz said today Rare Dem leadership split “The policy is to block private equity from taking over the single family home, and that is quite deliberate. There are some folks in private equity who don't like that, but it's a very deliberate choice that is supported on a bipartisan basis by 90 senators.”
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@jlcjak @yacineMTB Damping
Unless you are sprinkling water on your circuit
In which case you truly are dampening it.
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@berjineuh @wrycountenance @sdamico And also the best for making your nearly invisible fiber control lines extremely visible to the enemy
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@wrycountenance @Physburgh @sdamico True if they found a way to integrate lasers powerful enough to burn the fiber... Then Silver is probably the best material for reflecting the energy and diffusing the heat
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Thought about this some more: there’s a significant chance that this is THE achilles’ heel of fiber optic drones.
Dimko Zhluktenko 🇺🇦⚔️@dim0kq
Very interesting footage from Russians indicating that Ukrainian Forces use laser light beam to fry fiber optic on "waiter" drones. Quite unexpected turn of the warfare, take notes.
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@the_engi_nerd Knew of this, but hadn’t heard the term before
Thanks
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You want an infuriating evening of reading, google "Nuclear Bow Wave" and go look up how Sentinel is doing
Ryan Evans@EvansRyan202
You all should be much more pissed off about the F-35 and ICBM modernization
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@wrycountenance @berjineuh @sdamico Fibers are wave guides
The photon energy modes in them are ‘reflecting’ off the outer diameter of the fiber
Putting metal there, which will absorb broad spectrum energy will dissipate the energy quickly
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@berjineuh @sdamico if the coating is well away from the core, why would it introduce losses?
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