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stevespang

138 karma · joined November 28, 2016

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stevespang··on Life after detonation (2012)
Erythritol tetranitrate (ETN) - - cousin of PETN, for which the detonation velocity of ETN is just above 8,000 meters per second - - while PETN det vel is about 8,300 meters per second plus, which is in the top 90% of highest velocity detonation velocities available from high explosives.

ETN is about 3 times more sensitive than PETN and is more sensitive to friction than the former mentioned compound. The decomposition of ETN is oxygen positive: C4H6N4O12 → 4 CO2 + 3 H2O + N2 + 3/2 O.

Why would any professional mess around with something that is 3x more sensitive than PETN ? Easier synthesis perhaps, but life changing or ending, if it detonates accidentally

PETN is the preferred explosive in the widely used "det cord", likely for a good reason, at 3x less sensitive.

stevespang··on Gordon Moore has died
Scroll to 2:20 in the video below

Moore admits as a kid he had an explosives lab at home (unlicensed) back in the day. Even Elon Musk admitted he made pipe bombs as a kid.

Wonder how many similar promising science kids today would be / have been arrested and imprisoned today by the goons at Homeland for experiments like these ?

https://www.sciencehistory.org/files/scientists-you-must-kno...

stevespang··on The Physics of Scuba Diving
Correction:

>How about 40 percent oxygen and 60 percent nitrogen? (Note: This is real stuff, >it's called Nitrox.)

As a nitrox certified diver I can offer that most common nitrox mixes do not exceed 34% oxygen and often are 32% oxygen. For safety, a diver with 32% oxygen is typically limited to about 112 feet water depth, before potential oxygen toxicity sets in to the nervous system.

For safety a diver with 36% oxygen is limited to about 95 feet water depth.

A large majority of underwater reefs around the world are above these maximum nitrox depths.

Furthermore, nitrox is quite popular, especially among older divers as many seem to agree they have more energy near the end of a 2 tank or multiple tank dive day.

Using plain air and 2 tanks or more dives per day, it's been common to come back to the hotel and fall asleep to get a rest (or similar on liveaboards).

But using nitrox on all dives it's common for even the older crowd to have enough energy to be ready to go downtown to the bars and have some drinks after a day of diving.

stevespang··on Robertson vs. Torx screw drives (2021)
I have used square head on deck wood, stainless screws, sux so bad, the squares strip out so easily, torx is way to go, wish price would come down.
stevespang··on 3D-Printed Homes for Sale in Austin
City of Austin should require a fully "paid up in advance" insurance fund to completely protect all buyers (and sellers to buyers no matter how many times in future) for the full current value of the purchase price - - against cracks in slab, walls, structural failure, etc.
stevespang··on Kyshtym Disaster
I have Ukrainian relatives who survived Chernobyl. They are physics professors, who to this day - - are very nervous of anything emitting radioactivity.

They even refused to view a small alpha particle device I bought from United nuclear that had only a tiny piece of uranium ore from Canada inside it (virtually all alpha particles emitted)

stevespang··on A Facebook engineer abused access to user data to track down woman
Heh, so Zuckerberg's baby is now enabling predators and stalkers ?

I smell lawsuits going for the very deep pocket of Zuck . . . .

stevespang··on EU legislation allows emails, messages and other communications to be scanned
Telegram's "secret chat" option get's around this ?
stevespang··on Organic and regenerative agriculture are revitalizing rural Montana economies
Most apparent was the $200,000 in annual costs one of the farming operations saved by dumping the agro-chemical suppliers herbicides and pesticides.
stevespang··on Belarus 'diverts Ryanair flight to arrest journalist', opposition says
Belarus dispatches MiG-29 fighter jet to corral RyanAir flight bound for Lithuania - - - - forcibly diverted to Minsk . . .
stevespang··on Farming robot kills 100k weeds per hour with lasers
Bill Gates was already involved in a startup to radar identify and kill mosquitos with lasers . . . guess it did not go well.
stevespang··on The demise and potential revival of the American chestnut
Indeed, however Oxalobacter formigenes is not widely present in all human biomes, even those without antibiotic therapy.

I have attempted to garner the interest of major enzyme corporation (Novozymes, for example) in mass producing the oxalate degrading enzyme through fermentation, but no response.

stevespang··on [dead]
From Lab Escaped Covid to Now Carbon: China Emits More Carbon in 2 Weeks Than Australia Does in One Year
stevespang··on There’s One Big Problem with Electric Cars They’re Still Cars
Electric cars still require rubber tires, most of which are made from fossil/petro resources.

Electric cars still require roads to drive on, many of which are asphault, which contains cancer causing aromatics, and is the lowest, heaviest product in a refinery crack tower.

Many lubricants which are derived from fossil/petro are used in electric car transmissions, etc.

Electric cars have no less fossil/petro derived plastic and polymers than conventional cars.

stevespang··on [dead]
https://vimeo.com/490351508
stevespang··on Melvin Capital Lost 53% in January, Hurt by GameStop and Other Bets
The "new shorts" are the options traders who have placed millions of calls since Friday . . . no margins, but increased leverage
stevespang··on Sci-Hub Is Now on the ‘Uncensorable Web’
Just tried to download and install handshake. Requires docker. Just tried to download and install docker on windows 7, failed install, requires more stuff.

Opinion: This will never become a realization until these people realize the average Joe is not going to jump through all these hoops just to get an alternative browser up and running. It should be simple and seamless. Less than 1% will bother with all this.

stevespang··on [dead]
Dr. Pierre Kory represents a group of well published, highly regarded American physicians presenting new studies and research which they claim conclusively proves that ivermectin has been found to be the closest thing we have to a miracle drug for covid19 (both prophylaxis and treatment). Ivermectin is an well established, inexpensive existing drug with over 3 billion pills taken worldwide in past decades, very low side effects.
stevespang··on A family with no fingerprints
palm prints are standard now along with fingerprints, the creases within palms and fingers are verifiable.
stevespang··on Facebook's attempt to vilify Apple looks like sour grapes
The real dirt behind the scenes is that Apple paid to have an evaluation of how much access was worth to Facebook, told Facebook to pay up or else. Facebook balked at the number, and now Apple is gonna cut them off. Just simple business.
stevespang··on States bring action against Google under federal and state antitrust laws [pdf]
Internal Conspiracy. Rico Act stuff. Corporate criminals . . .
stevespang··on OnlyFans Is a Billion-Dollar Media Giant Hiding in Plain Sight
So, do I understand correctly this OnlyFans site is mostly a site where attractive women can post custom videos of themselves for serious money ?
stevespang··on SEC raised the limit on Regulation Crowdfunding from $1.07M to $5M
SEC should also place an individual limit of how much a "non accredited individual" can invest, like $10K.
stevespang··on Ask HN: How are you downloading YouTube videos?
Not quite that simple.

I brought up YouTube, clicked on sample video, dragged it into VLC where it displayed.

There is no "video info" in latest VLC download, there is >tools>media info, which at the very bottom yields location:

I copied pasted that URL in location: (https://r2---sn-bg5oqxjvh-xa2e.googlevideo.com . . . . . ) into Firefox and it would not resolve.

stevespang··on DHS Buying Moment-by-Moment Geolocation Cellphone Data to Track People
90% of that cellphone data is Google based. . . so, Google is participating in this destruction of privacy, just another reason for trustbusting of Google.
stevespang··on Portland passes broadest facial recognition ban in the US
FEDS are laughing at this, they do whatever they want to.
stevespang··on An Almond-Based Low Carbohydrate Diet Improves Depression in Diabetics
Not only are almonds (and most nuts) high in oxalates, but almonds as a crop use stunningly high amounts of water.
stevespang··on US Army wants to modify SpaceX’s Starlink satellites for unjammable navigation
This was inevitable . . . it also will make Space X's constellation of satellites a target for Russian and Chinese military.
stevespang··on Blueberry Compound May Provide New Inflammatory Bowel Disease Therapy
If you read the research publication the dosage given to mice was 100 mg. per kg. - - which is about 8 grams per human, that is HUGE.

pterostilbene is related to resveratrol

stevespang··on Anti-Piracy Coalition Wants Operators of Pirate Bay, YTS, 1337x, EZTV Uncovered
Does anyone really believe that the principals of these pirate suites freely give out their real phone no's, addresses, and anything else useful ? They know from the start that the authorities will be using the legal system to obtain this information (which is typically all false information anyway).

and if they hail from Russia no Western legal process applies in Russia, Russian courts don't respect any Western demands, in fact, Western lawyers who dare to show up in Russia would likely be beaten or killed, so they could hire local counsel, but the criminals can hire hitmen to take out local counsel cheaper than they can hire defense lawyers.

That says something about the legal trade: when guys can hire hitmen cheaper than you can hire a lawyer (and typically with more certain results)

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