Sun 23 Jun 2019
Stanford chemists have identified and synthesized two new healing
compounds in scorpion venom that are effective at killing staph and
Stanford researchers synthesize healing compounds in scorpion venom
When living in Mexico I kept a few specimen of the scorpion species used in
Diplocentrus melici. You can see photos of this
species and its habitat in Disappearing claws in the dark.
Sat 22 Jun 2019
On our way back from the town centre I took photos of a yellow flowers
PlantSnap app on my iPhone 5
identified as Hypericum calycinum.
The yellow flower of
Fri 21 Jun 2019
We’ve discussed a great number of topics over the past couple of
years, strike one: What is open source?
What is Open? Common misconceptions.
Thu 20 Jun 2019
In the early afternoon I noticed a new growth on the Lady of the Night
orchid I had given to my mother
day. And while taking
photos with my iPhone 5 I spotted another one.
I have been looking almost daily for new growths as I hope it will
flower in June. And maybe we'll get lucky.
Brassavola nodosa with new growths to the left and right.
Especially the new growth to the right looks like it is going to be
both a leaf and a flower stalk, as the latter grows from the former.
Wed 19 Jun 2019
I recently wanted to automate building a headless Debian testing
(codename “buster”) virtual machine, hosted on macOS, and it turned
out to be somewhat more complicated than I expected, so I thought
I’d document it here for others’ benefit.
Automating Debian install in
by Hugh Cole-Baker.
On our way to my aunt my mother and I encountered a beautiful and
friendly cat resting on top of a garbage can. I couldn't resist to pet
it which the cat enjoyed.
A cat resting on top of a garbage can.
Tue 18 Jun 2019
Using mmap in desktop applications has some serious caveats, and
writes Benjamin Schaaf in
Use mmap With
These three facts all seem eminently sensible and reasonable, right?
Unix time is the number of seconds since 1 January 1970 00:00:00 UTC
If I wait exactly one second, Unix time advances by exactly one second
Unix time can never go backwards
False, false, false.
Falsehoods programmers believe about Unix
by Alex Chan.
Net::SSLeay, a Perl module, on Ubuntu 19.04 the log
contained the following error after the build process halted prematurely.
/usr/bin/ld: cannot find -lz
This was fixed by installing the
zlib1g-dev package as follows:
sudo apt-get install zlib1g-dev
Mon 17 Jun 2019
Developers have the power to build the web for everyone, but that
power needs to be used responsibly. What matters, in the end, is
building things that help and enable people.
HTTP headers for the responsible
developer, a great overview by Stefan Judis with many links for further reading.