Hacker News: ramidarigaz

New comment by ramidarigaz in "Does that use a lot of energy?"

ramidarigaz — Wed, 04 Mar 2026 23:19:38 +0000

> Whenever you do the real world calculation for what an electric cars CO2 profile looks like it turns out to be the same as a gasoline car unless your country is majority nuclear.

Not at all true: https://www.carboncounter.com/

US-specific but you can even pick a state and it will use the generation mix of that state

New comment by ramidarigaz in "Ian's Shoelace Site"

ramidarigaz — Mon, 25 Sep 2023 17:37:40 +0000

I switched to the secure knot after finding this site a few years ago https://www.fieggen.com/shoelace/secureknot.htm

It's really excellent, my shoes never come untied and I don't have to double-knot

New comment by ramidarigaz in "Cold restart whole system after total outage"

ramidarigaz — Wed, 19 Jul 2023 23:46:27 +0000

Interestingly this paragraph isn't quite true:

> So much of the modern world depends on our mastery over materials (to make a precision screw, you need a precision-machined harder material—diamond / titanium—to work on a softer material—steel), and our ability to turn rotary motion to linear motion (it's stupidly difficult to reliably precision-machine a harder material without even more precise linear + rotary motion—lathe/CNC machine). Hence, a bootstrap problem.

Steel is hardenable (or rather, some steels are hardenable), you can change its hardness through the specific application of heating and cooling. So you can make a crude tool with relatively soft steel, harden it, and use it to make a more precise steel tool (again machine soft, then harden). This does make the bootstrapping problem a bit easier, I think. Although not easy in the absolute.

See https://www.youtube.com/watch?v=V_Mp1fNzIT8 for a great dive into primitive steel hardening techniques.

New comment by ramidarigaz in "Minecraft content creator Technoblade has died"

ramidarigaz — Fri, 01 Jul 2022 04:12:37 +0000

For anyone that hasn't encountered Technoblade so far, the Great Potato War is an excellent place to start: https://www.youtube.com/watch?v=5qjnDd1rsII

Fuck cancer

New comment by ramidarigaz in "NASA returns Hubble to full science operations"

ramidarigaz — Tue, 07 Dec 2021 23:37:04 +0000

Sure lots of organizations have unique capabilities, and SpaceX is one of those! Better to bring home Hubble than let it burn up once it's no longer operational. I definitely rate inspiration much higher than 'dubious' :)

New comment by ramidarigaz in "Hallucinations re: the rendering of Cyberpunk 2077"

ramidarigaz — Thu, 17 Dec 2020 22:20:52 +0000

Disagree about DLSS being cheap marketing trash. Especially on the quality or balanced settings, it produces a significant framerate improvement in Cyberpunk without any noticeable quality loss.

New comment by ramidarigaz in "Experimental blood test detects cancer up to four years before symptoms appear"

ramidarigaz — Wed, 22 Jul 2020 16:39:12 +0000

Azra Raza was also on the Mindscape podcast, really realy good interview.

https://www.preposterousuniverse.com/podcast/2019/12/16/77-a...

New comment by ramidarigaz in "Tesla Model 3 represented over 15% of September new car sales in The Netherlands"

ramidarigaz — Sun, 06 Oct 2019 16:38:39 +0000

I had no idea electricity was so expensive in NYC. Also, I think 3 miles per kWh is a bit pessimistic. Lifetime average for my Model 3 is 260 Wh/mi, which works out to 3.8 mi/kWh. Given Colorado's ~$0.11/kWh, it all works out to just under $0.03/mi which looks a lot more favorable against the other options. It's still a heckin' expensive car though.

New comment by ramidarigaz in "SpaceX Crew Demo-1 Mission [video]"

ramidarigaz — Sat, 02 Mar 2019 07:06:11 +0000

The NASA TV feed seems to be higher quality than youtube (and has identical content).

https://www.nasa.gov/multimedia/nasatv/index.html#public

New comment by ramidarigaz in "Astronauts escape malfunctioning Soyuz rocket"

ramidarigaz — Thu, 11 Oct 2018 18:22:23 +0000

There are only three right now. The usual procedure is to have enough Soyuz capacity for everyone on the station, so when the station has 6 people, there are two Soyuz.

New comment by ramidarigaz in "Introducing Remembear, new password manager"

ramidarigaz — Sat, 25 Nov 2017 18:42:38 +0000

If any of the Remembear developers read this, I'd love to put in a request for a Linux client!

New comment by ramidarigaz in "Cooling the Earth with a cloud of small spacecraft near the inner Lagrange point"

ramidarigaz — Fri, 25 Aug 2017 20:23:08 +0000

The inner Lagrange point is always between the sun and the earth (by definition), so the "shadow" would always be centered on local "noon" and would pass the each longitude at the same time every day.

New comment by ramidarigaz in "Four Earth-sized planets detected orbiting the nearest sun-like star"

ramidarigaz — Thu, 10 Aug 2017 16:47:18 +0000

Kepler has only focused on two tiny patches of the sky in its lifetime IIRC.

New comment by ramidarigaz in "SpaceX plans worldwide satellite Internet with low latency, gigabit speed"

ramidarigaz — Thu, 17 Nov 2016 23:37:33 +0000

This[1] article does a nice job of covering the subject, but in essence, laser-based communication between satellites has been done and it works pretty well.

[1] http://www.osa-opn.org/home/articles/volume_27/may_2016/feat...

New comment by ramidarigaz in "The problem with p-values"

ramidarigaz — Tue, 11 Oct 2016 17:17:06 +0000

I think there is a good option for choosing your priors in the Earth/Sun problem you mentioned. Just put them at 50/50. That's basically stating that you have no preference for one theory over the other, and it allows for any evidence you gather to be maximally effective in computing the posterior.

New comment by ramidarigaz in "Blockchain Healthcare 2016 Report – Promise and Pitfalls"

ramidarigaz — Wed, 05 Oct 2016 20:31:22 +0000

And that seems like a totally rational fear too.

New comment by ramidarigaz in "Announcing 10x donation matching on Watsi"

ramidarigaz — Mon, 19 Sep 2016 19:15:34 +0000

Watsi? It's a pretty well-known charity around here at least. I believe it's a YC-backed nonprofit.

New comment by ramidarigaz in "Google’s become an obsessive stalker"

ramidarigaz — Wed, 14 Sep 2016 14:49:51 +0000

What? Existential in that it could literally end our species? Nuclear war and climate change sure, but info collection? How is this not totally hyperbolic?

COZ: Finding Code That Counts with Causal Profiling

ramidarigaz — Wed, 13 Jul 2016 21:04:26 +0000

Article URL: https://www.usenix.org/conference/atc16/technical-sessions/presentation/curtsinger

Comments URL: https://news.ycombinator.com/item?id=12089651

Points: 1

# Comments: 0

New comment by ramidarigaz in "Robocalls have triumphed over the Do Not Call list"

ramidarigaz — Sat, 28 May 2016 19:26:35 +0000

The companies that run them do.