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M_bara

155 karma · joined April 1, 2019

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M_bara··on First 'tooth regrowth medicine' to be tested in Japan from Sept. 2024
This is something life changing for some of us. I grew up in an area where water has a lot of fluoride and we didn’t get to know until I was 16.. side effect is I have very brittle teeth.. I’ve shattered a couple due to bad rice (had a small stone in it), lentils, sliver of bone … Now, the kicker is Colgate et al have been marketing fluoride toothpaste to the same region to people facing fluorosis knowingly - profits above all else. so if this treatment comes through, I’ll be lining up!
M_bara··on Colon Cancer Is Rising in Young People: What to Know About Causes and Symptoms
archive.ph - https://archive.ph/ugUdY
M_bara··on Cloning a Laptop over NVMe TCP
About 9 years ago, I consulted for a company that had a bad internal hack - disgruntled cofounder. Basically, a dead man’s switch was left that copied out the first 20mb of every disk to some bucket and then zeroed out. To recover the data we had to use test disk to rebuilt the partition table… but before doing that we didn’t want to touch the corrupted disks so we ended up copying out about 40tb using rescue flash disks, nectat and drive (some of the servers had a physical raid with all slots occupied so you couldn’t use some free had slots). Something along the lines of dd if=/dev/sdc bs=xxx | gzip | nc -l -p 8888 and the reverse on the other side. It actually worked surprisingly well. One thing of note,try combinations of dd bs to match with sector size - proper sizing had a large impact on dd throughput
M_bara··on Controlling 3.6kW of Solar EV Charging with an Arduino GIGA R1 WiFi
Please share some more details on your setup :)
M_bara··on How Maasai agro-pastoralists form and use accidental social ties (2021)
Back in the day ~23 years ago. A telco that had just launched started providing voice mail service. Normal outgoing call rates were about .5 usd per minute. The newly launched voice mail service was free. So university students found a new trick to call their friends, flash your friend (single ring signal to say that they don’t pick up their phone), hang up and call again, let it ring till it goes to voicemail, leave a long message, hang up and wait for the reply. Obviously it’s not full duplex and latency was high but what the e heck it’s free. The telco killed it within 2 days… and then we started having fun with all those smsc Center numbers from all over the world…
M_bara··on Relativistic Spaceship
Pushing ice… a brilliant book - my first foray into hard sci-fi
M_bara··on Ask HN: Should I try to manufacture toasters?
Yeah, these fr*cking toasters are out to get humans. Ask colonel Saul
M_bara··on Details on Xiaomi EV
I agree. I was there a month back and the EV adoption is incredible. From small scooters, delivery vans to sedans. EV is roaring there and from the little I saw, innovation growth is crazy. Went into a small factory for making solar street lights and it was full of solar panels and EV battery cells… note that this was a small factory with container loads of cells!
M_bara··on GCP Incidents
The mantra at aws is customer experience. Any time there’s an outage or impact, the first numbers to be stated are customer impact related. In fact, as an engineer you might be empowered enough to recommend a refund for a customer (even though the customer may be at fault) and the refund will go through.

Full disclosure: worked for aws devops for a couple of years

M_bara··on Chicken hypnotism
On another note, hooting continuously will make a chicken shake its head. Use a tone similar to an owl.. (hoooooooo). Doing that in a coop with hundreds… you’ll have lots of chickens disagreeing with you. Wonder if it has to do with standing waves and chicken ears
M_bara··on Ask HN: I'm a SWE without a CS degree. Will online certs help me get into FAANG?
Yes, I worked in FANG and one of my pals didn’t have a degree yet was highly regarded in the company. What really matters is what you know and whether you can execute…
M_bara··on Super-Earths in Need for Extremly Big Rockets (2018)
Not a rocket scientist or even a physicist.. but if i remember right, the bulk of your energy in a rocket is expended on your horizontal speed not the height gain. I came across this when I was looking up if it made sense to launch a rocket from an equatorial mountain like Kilimanjaro (6000m asl)
M_bara··on An open-source alternative to QuickBooks
Yep, trying out a self hosted erpnext. It’s quite smooth and reliable especially when you compare it with Odoo. The cost for their cloud options is also way more economic to Odoo. Want to try out their integration with woo commerce.
M_bara··on As the West surges toward electric cars, the unwanted gas guzzlers go [to Benin]
The crazy thing is that the tax policies put in place by African governments push folks to buy old cars at crazy prices. A typical 8 year old second hand import car will cost more than the same brand new in the west. For example, a 2013 mazda Cx5 will cost ~20k (no warranty, caveat emptor..) while a new one in the west will cost ~30k usd. A new Cx5 in most African countries will set you back at least 60k usd. Why? Taxes! Buy the used car in Japan, get slapped with duties, add 16% vat and shipping cost. Typically, this doubles the purchase cost

Examples: https://www.mascardi.co/the-new-generation-mazda-cx5-xdl

https://crotonmotors.com/mazda/cx-5/

https://blog.sbtjapan.com/how-tos/how-to-import-vehicles-to-...

M_bara··on Estes Rockets Model Scale 1:100 Replica of SpaceX Falcon 9
Anyone know what’s the fuel combination of Estes? I live in a country where shipping this is probably impossible. As a high schooler I was very keen on rocketry, we ended up cobbling one using a deodorant can as the body, a slurry of potassium permanganate and sulphur or sugar as the fuel (which was hypergolic at the wrong times) and an igniter which was a trail of the same fuel about 30 cm long. They’d take off and explode about 3m up (burn rate?). It was stupid and fun but the chemistry teacher killed it as soon as they became aware of it. Good times though.
M_bara··on Apple halted M2 chip production in January amid 'plummeting' Mac sales
Ditto. Macs are surprisingly long lasting. I have - a 2011 MacBook Pro that is used for midi and piano classes. One battery change in 2018 and that’s it. It’s used every other day by kids for 2 hours. - a 2013 MacBook air. Workhorse for the kids homeschooling. Used every day for 8 hours or so. One battery change and a MagSafe adapter change. - a 16” 2016 MacBook Pro. My daily work device for the past 5 years. One battery change and 2 MagSafe adapters. - a 13” 2019 MacBook air for the wife. It’s been puked on till the screen is a bit messed but it still works. No hardware updates.

So we are talking about ~ 30 years cumulative ownership with 3 battery changes and 3 MagSafes. Not bad in my book. If you want to nuke e waste, buy a Mac and hope it’s not a lemon. They rarely are

M_bara··on Medjed
Was a little confused and expecting an article on medjel… from consider phlebas
M_bara··on The xine hacker's guide (2003)
Brings back memories… along with skinning XMMS. Good times
M_bara··on AFRINIC “In a Bad Situation”, Has Not Been Able to Constitute Board; Has No CEO
Part of the reason the governance is failing is due to NRS [1]. The NRS is running a concerted disinformation campaign [2] and a sue everyone and everything campaign to cripple AfriNIC [3]. The root cause is someone got some up blocks from out of the AfriNic region awhile back and started using for nefarious internet activities. They got discovered and the ip blocks reclaimed[4]. A change of the bylaws was instigated to create a new rule to allow the export of ip blocks from the region, that failed. Finally the court cases started rolling in to try and use the courts to allow the export of the ip blocks and or cripple and scare employees of AfriNic. So far, the offense team is winning, no ceo has been selected due to the chaos, the board is no longer there and some elements of the community have been paid off to ensure no consensus inthe annual meetings. Also, there’s the natural split of the Africa community along francophone and anglophone lines which is making things difficult. It’s a terrible time for AfriNic….

1. https://www.nrs.help/

2. https://m.youtube.com/@numberresourcesociety/videos?view=0&s...

3. https://afrinic.net/court-cases

4. https://afrinic.net/ast/afrinic-press-release-litigation-202...

M_bara··on Ask HN: Do you use noise cancelling headphones?
Using the tozo nc9s and the soundcore q20 for work. Interchangeably used depending on the portability and noise levels. The nc9s are portable and decent at cutting out droning noises but they have a n occasional weird desynchronisation when you listen to music, one earbud might be a few millis behind the other in stereo :( The soundcore is solid. Both are quite affordable compared to Bose, Sony…
M_bara··on How a Cocaine-Smuggling Cartel Infiltrated the World’s Biggest Shipping Company
https://archive.ph/l2scR
M_bara··on TurboWarp Desktop
Code monkey is brilliant. I have a kid starting out on sequencing in code while another one is designing a game in the app (sprites, loops, events..)
M_bara··on From Plex to Jellyfin Media Server
I have an old Samsung (2015). I stream jellyfin via DLNA. Works for me
M_bara··on The cult of dd (2017)
Some options for dd do matter. I have seen it substantially increase throughput While mirroring disks. Playing with the block size can make a large difference (disk block size alignment).
M_bara··on California to discontinue plastic grocery bags
IMHO, an outright ban is exactly the right thing. The typical person will not turn down a bag given for free every time they visit the store. They get home, unpack and dump the plastic bag. Having people purchase reusable bags makes folks think and actually plan their supermarket visits (how am I going to carry my purchases). In Kenya, single use bags are completely banned, in less than 5 years, plastic bags on trees [1] became a thing of the past.

1. https://i.pinimg.com/originals/df/8f/52/df8f52035377cf815650...

M_bara··on We're going to need a lot of solar panels
Just wondering, isn’t it viable to have Solar arrays in the Sahara/equator regions and have the power transmitted to temperate zones? Is the transmission the issue? Is it politics? Super conductors? I’d love to know why we can’t have a follow the sun global grid…
M_bara··on Ask HN: Which book would you pick to re-read for the rest of your life?
Pandoras star by Peter f Hamilton. This along with pushing ice and the culture series opened a new vast world for me. Will keep rereading them every few years
M_bara··on Gunslinger Effect
Mister, I deal in lead…
M_bara··on OpenBSD has two new C compilers: chibicc and kefir
Perhaps he meant mursik [1]

1. https://en.m.wikipedia.org/wiki/Mursik

M_bara··on Plant of the Month: Robusta Coffee (2021)
Let me throw you a curve ball. For espresso try a 50-50 blend of gourmet and espresso from these chaps [1], it’s amazing. Elgon is also pretty good as a French press coffee. Not affiliated with them, just a fan.

1. https://www.springvalleycoffee.com/orderusa

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