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bbojan

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Alleged confirmation of MOND in Gaia data

phys.org
8 points·by bbojan·3 jaar geleden·3 comments

comments

bbojan
·vorig jaar·discuss
You mean you must record the timezone? Because the TZ offset can change throughout the year (e.g. due to daylight saving time).
bbojan
·vorig jaar·discuss
Copper kills funghi too, and that's a problem as funghi are important element of healthy soil.
bbojan
·2 jaar geleden·discuss
Thorcon [https://thorconpower.com/] has a plan for this, but they're still years away.
bbojan
·2 jaar geleden·discuss
Ralph Waldo Emerson is as relevant as always: "A foolish consistency is the hobgoblin of little minds, adored by little statesmen and philosophers and divines."
bbojan
·2 jaar geleden·discuss
How does this compare to Instant (https://www.instantdb.com/)?
bbojan
·2 jaar geleden·discuss
> the team will eventually fix the tech debt when there are not enough feature tickets to exhaust capacity

I have yet to visit this misterious universe you describe.
bbojan
·2 jaar geleden·discuss
Thanks for the detailed info, this was the stuff I was looking for but couldn't find quickly.

>> is difficult to re-process

> That's not a problem. You just don't reprocess it.

There's not enough uranium in the world to last us more then a few decades if we leave 60-80 percent of it unreacted in spent fuel.
bbojan
·2 jaar geleden·discuss
In my opinion TRISO fuel is bad because it has very low burn-up and is difficult to re-process.

These things together mean it has quite low utilization of enriched uranium.
bbojan
·2 jaar geleden·discuss
Since then 500 million people or more have been taken out of poverty. They are competing with you for resources. That's why what was going on in the US in the 50s is no longer possible.
bbojan
·2 jaar geleden·discuss
Because all masses accelerate at equal rates in a gravitational field either:

1) Inertial mass and gravitational mass are exactly equal without an explanation why

or

2) The acceleration is just an effect of a curvature of space.

Imagine two bodies thrown exactly Northward on a sphere. Although their paths are parallel they would approach each other, as if there was an acceleration. This acceleration would be the same whatever their mass is.
bbojan
·2 jaar geleden·discuss
> How do you explain airplanes that can fly with wing with symmetrical cross-section profile?

> How do you explain airplanes flying upside-down?

Angle of attack is what causes lift. If you have a surface angled against the relative wind, it will produce lift.
bbojan
·2 jaar geleden·discuss
> For this portion I don't necessarily do TDD, because I remain unconvinced that writing unit tests first is inherently better than writing unit tests afterward.

I would argue that TDD doesn't imply writing unite tests - it's about writing any tests first.

If you have acceptance tests already written out, you're already doing TDD.
bbojan
·2 jaar geleden·discuss
I would say it's an excellent entry level split ortho keyboard, but it's quite large. Later you can go to a 50 key one or lower.
bbojan
·2 jaar geleden·discuss
I'm probably much older than you, and I found the reduced travel or the alternative layouts much more important than speed. Your hands will thank you one day.
bbojan
·2 jaar geleden·discuss
I found Workman horrible for same-letter bigrams.

After testing a lot of different layouts I've settled on a slightly modified Colemak-DH.
bbojan
·2 jaar geleden·discuss
I've built exactly that, but need to polish it a bit before releasing. Hopefully will have time to do it soon.
bbojan
·2 jaar geleden·discuss
> Another way, if you know what the code is supposed to do, why write it down in two places?

This would be like criticizing double-entry accounting by asking "if you know what the amount is, why write it down in two places?"

We write the code down in two places because that gives us advantages that far outweigh the added effort:

- Once written, your test will catch regressions forever

- A test is often excellent documentation on what the code does

- It's now much easier to refactor the code, making it more likely that it will be refactored when needed.
bbojan
·2 jaar geleden·discuss
> SpaceX ahs yet to get us some place we haven't been in space, or at the very least one we have not been to in a long time.

It got us to a place where the cost of a rocket launch is 10 times less than it was before, and soon it will get us to 100 times less. It's just a matter of time that this is leveraged to bring us to new physical places.

> And equalizing SpaceX successes with Musk a person does way more than just rub me the wrong way.

He is the person that single-handedly made the decision to start a rocket company, decided on the initial architecture, hired the key people and finance the whole operation.
bbojan
·2 jaar geleden·discuss
I believe in German-speaking countries the X-ray machine is called Röntgen? E.g. in a hospital you will have directions for "Röntgen".
bbojan
·2 jaar geleden·discuss
1/12th of the weight of 6.02214076×10^20 carbon 12 atoms.