HNHacker News
TopNewBestAskShowJobs

kaybe

3,656 karma · joined September 11, 2011

German environmental physicist, currently doing volcanology / air pollution research and running remote sensing on board an aircraft.
submissionscomments
kaybe··on Show HN: I made a meme creator that makes around $4k a month
I am deeply annoyed by ads with bad context fit. When I read about something I don't want my attention to be hijacked to other topics.

E.g. when I look at code I don't want ads for photography equipment, but ads for coding courses or books may be juuust acceptable. It also has the nice benefit of not needing personalization, so the sibling comments' points are also included.

kaybe··on Japan is holding back as the world rushes toward electric cars
Many countries have plans for coal phase-out, including dates. There could be more, of course, and tighter timelines, but it's there.

Considering the much higher costs of gas and oil in comparison (and compared to renewable) this might just be enough to get out of using fossil energy for most power production. (Except maybe to cover peaks.)

https://en.wikipedia.org/wiki/Coal_phase-out

PS: For anyone able to read German, the German article has more in-depth information in some points:

https://de.wikipedia.org/wiki/Kohleausstieg

kaybe··on Many of the clothes we donate to charity end up dumped in landfill
I have the same issue and I only ride cars very very rarely. I'm still wondering about the reason.
kaybe··on Many of the clothes we donate to charity end up dumped in landfill
It's also 'this is broken and should go to cloth recycling, but I do not have access to any cloth recycling facility, whereas the donation centers do'.
kaybe··on First batch of student’s washing machines shipped to Iraq
Here is an olympic cyclist barely managing to toast bread:

https://www.youtube.com/watch?v=S4O5voOCqAQ

Electricity is nice.

kaybe··on NYC to mandate proof of vaccination for many indoor settings
Yes, that sounds plausible, it's the same for me.

(It's not hard to guess how I know about the asthma potential. -.-)

kaybe··on Airyx OS
Hm, there is a German company with the same name..

https://airyx.de/

kaybe··on NYC to mandate proof of vaccination for many indoor settings
> Every time I get a head cold, I typically develop a cough that lasts > 3 weeks.

Just a heads-up, that can turn into asthma if you are susceptible. Take care to properly heal every time.

(That'd be 'long cold' I guess. We don't need more of that stuff.)

kaybe··on U.S. generates more plastic trash than any other nation, report finds (2020)
I've seen some grass cardboard pop up in the few deliveries we get. The wood pulp is probably negotiable and increasingly more so.
kaybe··on The recycling myth: A plastic waste solution littered with failure
I wish the plastic packaging of the toilet paper was even better suited as a liner for the bathroom bin. It's just good enough as it is, but the producers don't even seem to be aware of this fantastic secondary function.
kaybe··on What animals see in the stars, and what they stand to lose
Some of the strongest and clearest constellations are seasonal. I have a particular fondness for Orion, a winter constellation in the northern hemisphere, and look at it often.

The first time I travelled to the southern hemisphere and looked up to the night sky, it was full of unknown structures - but I also found my old friend Orion - upside-down. I turned my head to get the familiar feeling back.

Obviously, it was not the stars but me that were upside-down - the most definite sign of Earth's shape I have ever seen. And yet, it is hard to grasp. The world looks the same, solid, flat and steady beneath me. It is rare to get a glimpse of the world's three-dimensionality. Usually we live in only 2.5d.

kaybe··on A soil-science revolution upends plans to fight climate change
I can also recommend this wikipedia article and its surroundings:

https://en.wikipedia.org/wiki/Terra_preta

kaybe··on Rumbling meteor lights up Norway; part of it may have landed near Oslo
Did you hear anything?
kaybe··on ‘If You’re Not a Criminal, Don’t Be Afraid’– NSO CEO says
That, and laws can change fast. In Germany, we know.
kaybe··on The global threat from plastic pollution
The dishwasher even appears to get them reasonably clean in home use (in case you're not inclined to wash them with the little brushes after each use).
kaybe··on The most precious resource is agency
How much is an avocado in the US?
kaybe··on Canada weather: Heatwave hits record 46.6C as US north-west also frazzles
CO2 goes down due to chemical weathering - basically it binds to the rock and is then washed into the sea, where it is subducted into the mantle due to plate tectonics. It comes back up from volcanoes - the deep carbon cycle.

The amount of weathering depends on the access the atmosphere has to the rock. If there is a thick ice layer, the rate goes down. Water plays a role as well, and the fastest weathering happens in the tropics and not the deserts (where you have mechanical weathering which does not bind CO2). Accordingly, the configuration of continents can play a role as well, which is interesting if you go back far enough. On the other hand, the volcano emissions appear somewhat constant over time.

In total though, there are still many open questions. Why does CO2 appear to go up so fast after an ice age? Does CO2 or temperature go up first? In the records, the temperature increase appears rather sudden, on the timescale of decades. How does this happen? (Note though that that has no huge importance for our current problem since the situation is different. But the reaction speed of the system is relevant, for example.)

Note: If we wait long enough (~tens of thousands of years) the CO2 level should go down again from weathering. There are proposals for carbon capture that uses this mechanism (by grounding the rocks and distributing them openly so the atmosphere can reach a lot of the rock surface, thus increasing the weathering rate massively).

Note2: You need silicate rock, which is not distributed evenly.

kaybe··on Drug users use a lot of drugs
Wow, how much did you drink?
kaybe··on The drought in the western U.S. is getting bad
Y'know, search engines to help with that question.

https://www.climate.gov/news-features/climate-qa/which-emits...

kaybe··on Bosch opens German chip plant
I think it's informative to look at the location of a place within a timezone. Between the eastern and the western edge of a timezone you can have more than an hour of shift in daylight (in the broader zones), of course people's rhythms will be shifted.
kaybe··on Carbon dioxide peaks near 420 parts per million at Mauna Loa observatory
You can't be a climate scientist right now and not code. (You don't have to be good though.. urgh.)

I do think the people working on upgrading the energy grid do have more utility at this point though.

kaybe··on Carbon dioxide peaks near 420 parts per million at Mauna Loa observatory
Yes, but that is not necessarily a good thing in terms of carbon capture. Eg research indicates that in the tropical rainforests, lianas get the largest boost, allowing them to basically smother the tall trees. However, these store the most carbon, so the total carbon stored in the forest goes down.
kaybe··on Replacing grass lawns with native plants
Just watch out for the bees in the clover flowers, as we here all learned the hard way as kids.

(No grass without clover and daisies, they're honorably lawn here as well.)

kaybe··on Google’s new popup will further weaken Facebook’s advertisement business
I'm not sure, going to a more monopolistic world still seems bad to me, even if I like and trust this particular player a little bit less than the others.
kaybe··on Trials begin on lozenge that rebuilds tooth enamel
I have a friend with extreme food restrictions, they can mostly only eat animal products (plus white rice and very few other things). They also cannot brush their teeth regularly due to disability - yet their teeth look fantastic!
kaybe··on Trials begin on lozenge that rebuilds tooth enamel
I feel problems with gums and other areas don't get stressed enough in childhood. There are plenty of other problems that are not enamel-related, and I'd guess you can easily still have trouble with enamel even with this treatment.
kaybe··on Ask HN: Favorite purchases of last two years?
> Braun BC02BW

I love this one, have been using it for a long time. I hope they never discontinue making them.

kaybe··on Ask HN: Favorite purchases of last two years?
Anyone else wondering, click here:

https://onewheel.com/products/pint

kaybe··on Ask HN: Favorite purchases of last two years?
- Noise-cancelling headphones (Sony 1000X-M3) are totally saving the rest of my productivity in home office. (The bluetooth does not work with my current Linux version, but I will not update that until my work is done just in case something else stops working. It does however work with my 10-year-old Nokia phone. But hey, there is an audio cable which also works fine. The next time I will probably buy Bose, but only since they are smaller and would work better for my head. Long live noise-cancelling technology, especially if you live close to a road or have neighbours you can hear.)

- A nice shoji paravent to shield me from the room during work.

- A vase and regular flower updates that do wonders for keeping the place fresh and me in a mood for tidying and cleaning it up. (Single flowers from the flower shop nearby are quite cheap.)

- Some lamps to increase the cozy vibe for the evening (changing the light can change the room, and I need about 3 rooms right now where I have one).

kaybe··on A teenager's guide to avoiding actual work
My computer spoke English. I didn't. I just had some nonsensical (for me) commands memorized. Things were indeed different back then.
← PreviousPage 3 of 34Next →