bchallenor

6 ms·

1.
by bchallenor 6y ago
Interesting. Here is a comparison of the two rules_scala implementations: https://github.com/higherkindness/rules_scala/issues/261
2.
by bchallenor 6y ago
Bazel is a nice build tool, but AFAIK it still doesn't support Scala 2.13, released mid-2019: https://github.com/bazelbuild/rules_scala/issues/809
3.
Lab-grown food will soon destroy farming – and save the planet(theguardian.com)
3 points by bchallenor 7y ago|0 comments
4.
by bchallenor 8y ago
What does guix mean by "inconclusive"?
5.
by bchallenor 8y ago
I find this pretty fascinating. Apparently it's a single gene that is responsible for the inability to synthesize vitamin C. [1] [1] https://biology.stackexchange.com/questions/401/why-do-human...
6.
by bchallenor 8y ago
There's a fascinating YouTube series called "The Most Complex International Borders in the World" about enclaves and exclaves. [1] There are even some "counter-enclaves", e.g. a part of the Netherlands inside Belgiu
7.
by bchallenor 8y ago
syncthing-lite [1] is already supposed to do what you want for your second point. But it's not really there yet. I haven't managed to get it to work reliably (unlike the original app, which is great). [1] https://github
8.
by bchallenor 8y ago
On Android I've found that the volume that the phone thinks the AirPods are at can get out of sync with reality, the result being that Android's idea of full volume is actually very quiet. (Perhaps I tried to change the volume b
9.
by bchallenor 8y ago
The customer still ordered via the listing of a specific vendor, even if Amazon shipped from co-mingled stock.
10.
The best way to save the planet? Drop meat and dairy(theguardian.com)
2 points by bchallenor 8y ago|2 comments
11.
by bchallenor 8y ago
You can just refuel in Earth orbit though. That would use less fuel [1] than landing on the moon unless you were going to the moon anyway. [1] https://en.m.wikipedia.org/wiki/Delta-v_budget
12.
by bchallenor 8y ago
My example was to give quantitative evidence for the speed of contactless transactions. It is true that there is no barrier in Berlin, but you still need to buy a ticket. For casual users such as myself, who don't have a season ticket,
13.
by bchallenor 8y ago
Plus, I get an instant notification on my phone whenever my card is used. And if I see anything suspicious, I can freeze the card via the app (declining all further payments).
14.
by bchallenor 8y ago
I am visiting Berlin at the moment, and I miss the convenience and speed of being able to pay with contactless, by card or phone. Regarding the speed of transactions: cash might be faster than signature or even Chip+PIN, but is surely not f
15.
A Real-Life Enchanted Forest(nytimes.com)
3 points by bchallenor 8y ago|0 comments
16.
Charging electric scooters is a cut-throat business(theatlantic.com)
283 points by bchallenor 8y ago|227 comments
17.
by bchallenor 8y ago
Having grown up in the UK, I was amazed when I first saw the Milky Way in New Zealand. I believe it's more visible in the southern hemisphere. [1] [1] http://darksitefinder.com/how-to-see-the-milky-way/
18.
by bchallenor 9y ago
I make it 4ms [1], not 40ms. [1] http://www.wolframalpha.com/input/?i=800mi+%2F+speed+of+ligh...
19.
by bchallenor 9y ago
TCP and UDP are "IP protocols" in that their packets are nested directly inside an IP packet and they have associated protocol numbers [1] to distinguish them from other things that might be inside an IP packet. QUIC theoretically
20.
by bchallenor 9y ago
I didn't know about the --init flag to docker run, thanks! Looks like that was added last year with 1.13.0. Going to have to try this myself, now.
21.
by bchallenor 9y ago
`terraform state mv` is indeed the trick. It took me a while to understand it, but this blog post helped. [1] It leads you through refactoring some resources into a module. The key takeaway for me was "we really only need to consider t
22.
Russia and US will cooperate to build moon's first space station(theguardian.com)
2 points by bchallenor 9y ago|0 comments
23.
by bchallenor 10y ago
I use the NFC Yubikey to store a PGP key, which can then be used with pass [1] + GPG on the desktop, and Password Store + OpenKeychain on Android. Works nicely. And if you choose to also keep the PGP key on the desktop, you don't need
24.
by bchallenor 10y ago
I recently evaluated the two and went with FlatBuffers, largely because its Java support appeared to be more mature. The FlatBuffers encoding is based on vtables and is relatively straightforward (the runtime library is tiny). This also mea
25.
by bchallenor 11y ago
Apparently CodeCommit is a new feature (last couple of months?). I had no idea it existed - thanks!
26.
by bchallenor 12y ago
This paper is very readable - thanks for the link.
27.
by bchallenor 12y ago
Is it possible with scalar subqueries to perform anything other than a tree of correlation? With CROSS APPLY one can correlate a DAG of subqueries, e.g. a diamond where B and C depend on A, and D depends on B and C.
28.
by bchallenor 12y ago
The syntax for this is pretty horrible, however. And if you want to return more than one column from the subquery, you would have to duplicate the subquery definition for each column, right? Then you'd have to have faith that the optim
29.
by bchallenor 12y ago
No, you can write queries that are not really possible to express without it. Basically, it allows you to execute a table-valued function for each row in an earlier query. For example, in SQL Server I find a common use of CROSS APPLY (which
30.
by bchallenor 12y ago
Thanks for the example. It seems to be the same as MS SQL Server's CROSS APPLY / OUTER APPLY? Anyway, good that Postgres has it too, now. There are several Postgres features I'd love in SQL Server, like range types...

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