Hacker News: woutgaze

New comment by woutgaze in "Observations from carbon dioxide monitoring"

woutgaze — Mon, 30 Mar 2026 14:12:38 +0000

If your air purifier sucks from and dumps into the same room it will do nothing for CO2 levels. Only for dust particulates.

New comment by woutgaze in "Ask HN: What Are You Working On? (March 2026)"

woutgaze — Mon, 09 Mar 2026 07:55:49 +0000

Is it also self-hosting as a sort of meta-quine?

Which Knot Is Stronger?

woutgaze — Wed, 26 Feb 2025 07:07:41 +0000

Article URL: https://www.scientificamerican.com/article/which-knot-is-stronger-humans-arent-great-judges/

Comments URL: https://news.ycombinator.com/item?id=43181424

Points: 10

# Comments: 0

New comment by woutgaze in "Human-powered air-compressor and energy storage system"

woutgaze — Sun, 16 Jul 2023 16:08:45 +0000

Nice setup although I remember that the efficiency of air tools is very low like around 1%. That’s also why they get replaced a lot.

New comment by woutgaze in "A Bluetooth Low Energy soil moisture sensor"

woutgaze — Fri, 21 Oct 2022 09:02:34 +0000

What if the plant grows?

New comment by woutgaze in "Show HN: Heat Pumps, Hooray – A heat pump calculator for your home"

woutgaze — Wed, 14 Sep 2022 18:33:11 +0000

Does anyone know something similar for Europeans (I live in The Netherlands)? Common units used here are all metric; for heating I've seen Natural Gas Usage (in m3) used and GigaJoules. Also almost no-one here seems to use air conditioning.

New comment by woutgaze in "The future is in symmetrical, high-speed internet speeds"

woutgaze — Mon, 05 Jul 2021 05:21:26 +0000

In the Amsterdam area there is ftth available. I have 500/500 for € 55.

New comment by woutgaze in "Open Source Farming Robot"

woutgaze — Fri, 25 Jun 2021 13:06:04 +0000

> a slug-hunting robot powered by fermented slugs

Isn’t that called a duck?

New comment by woutgaze in "The Elephant at WWDC"

woutgaze — Sun, 13 Jun 2021 14:42:50 +0000

Can you recommend a book or course for improving ones ability to write good technical documentation?

New comment by woutgaze in "Ask HN: Anyone know any funny programming jokes?"

woutgaze — Thu, 21 Jan 2021 07:08:19 +0000

Yo mama's so fat, we had to set her column type to BLOB.

New comment by woutgaze in "Why do they still make car alarms? (2015)"

woutgaze — Wed, 20 Jan 2021 07:12:21 +0000

I had one here in The Netherlands on my Volvo. I also remember setting it off accidentally many times.

New comment by woutgaze in "Nuclear lighthouses built by the Soviets in the Arctic [video]"

woutgaze — Fri, 08 Jan 2021 10:07:19 +0000

For a very good writeup by the organization Bellona, which is also in the video see https://bellona.org/news/nuclear-issues/radioactive-waste-an...

New comment by woutgaze in "Is carbon capture a viable solution?"

woutgaze — Wed, 25 Nov 2020 11:11:25 +0000

We're not talking about sterilizing earth but a runaway greenhouse effect. For example Venus seems not to have survived: https://climate.nasa.gov/news/2475/nasa-climate-modeling-sug...

New comment by woutgaze in "Is carbon capture a viable solution?"

woutgaze — Tue, 24 Nov 2020 12:37:42 +0000

How do you know nature will survive? Records of previous climate changes indicate the change occurred more gradually in tens of thousands of years, not within 200 years. So nature may not have time to adapt. Also the living earth may have just been lucky the last time drastic climate change occurred; it's not that we have thousands of earths to exclude survivorship bias.

New comment by woutgaze in "Dev Fonts"

woutgaze — Fri, 20 Nov 2020 14:00:54 +0000

Most Smalltalk IDE's use a variable width font by default.

New comment by woutgaze in "A Ray of Hope: Array Programming for the 21st Century [video]"

woutgaze — Thu, 19 Nov 2020 07:29:48 +0000

Quick summary: Gilad Bracha introduces a new programming language called ShapeRank. It seems to be based on APL but introduces the concept of streams which are [vectors | tensors | arrays] of unbounded length.

New comment by woutgaze in "Google Earth Timelapse"

woutgaze — Fri, 31 Jul 2020 09:56:00 +0000

Why will it again? I suspect survivorship bias here.

New comment by woutgaze in "The Rise and Fall of Commercial Smalltalk"

woutgaze — Wed, 03 Jun 2020 14:55:09 +0000

Check out our (web based) product at https://ag5.com . We’ve built it with VisualWorks Smalltalk among other tools.

Every year we ask ourselves if we should be using such an niche tool but somehow almost every new employee at our company gets hooked on smalltalk. So it now has become our secret superpower.

New comment by woutgaze in "PostgreSQL is the worlds’ best database"

woutgaze — Fri, 03 Apr 2020 09:14:48 +0000

Something like this will do the job in PostgreSQL:

  CREATE TABLE reservations (
    item_id uuid,
    duration tsrange,
    EXCLUDE USING GIST (item_id WITH =, duration WITH &&)
  );

New comment by woutgaze in "Germany's Coronavirus Death Rate Is Lower Than in Other Countries"

woutgaze — Wed, 01 Apr 2020 09:28:50 +0000

> Lots of people don't go to ICUs - only 10% of the deaths happened in an ICU. Do you perhaps have a citation for this?