mojomark

36 ms·

361.
by mojomark 6y ago
As someone working on ship design for a few decades I can attest that this site is an amazing resource for whacky concepts and also new concepts, internationally, that were/are being experimented with but were/are fairly under wra
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by mojomark 6y ago
My wife and I vacationed in Portugal a few years back. We stayed in Cascais before heading to Lisbon (both were stunning and the people extremely friendly - Cascais was like a mini-Lisbon on the sea to me). In any event, we took a little su
363.
by mojomark 6y ago
Have you tried the Wolfram Alpha app? I didn't try all of the examples you posted, but graphing a circle works fine. I use this app all the time to help me simplify expressions (I'm an engineer - I use math, I love math, but I am
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by mojomark 6y ago
Actually, Al+ is purified by smelting, which is powered by applying thermal energy to a sample. As I alluded in my comment above, you can generate the thermal energy by any number of modes of energy transmission (electrical, chemical, RF ra
365.
by mojomark 6y ago
>>To produce Hidrogen, you need electric energy, or some very hot source that could be turn to electricity at a high efficiency. This is not a true statement... Aluminum alloys readily liberate H2 from H20 at room temperarure (an exot
366.
by mojomark 6y ago
Not all LCD screens require a backlight. Reflective and Transparent LCD's can operate without backlights (1, 2), and the hybrid transflective LCD's can use ambient light and/or backlight to illuminate the image. Transflective
367.
by mojomark 6y ago
I poked around with some older URL's I had - worked well to my surprise
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by mojomark 6y ago
Well, there you go:P Glad someone is looking out for our future past. Donation in process.
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by mojomark 6y ago
Enjoyed reading. Asside from staples, mine are... Remarkable 2 - maybe it's first because I just got it 4 weeks ago, but it's amazeballs. I'm a paper notebook monster and I've replaced them all. Udemy Course: Artificial
370.
Ask HN: How well did we archive the internet for future generations?
1 points by mojomark 6y ago|5 comments
371.
by mojomark 6y ago
Another classic Winston/CC mess-around.
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by mojomark 6y ago
Is wall street angry that pesky human traders are disrupting their automated high-speed trading constructs?
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by mojomark 6y ago
I often wonder, when there are technologies/commodities for which the entire world is targeting a certain 'magical' dollar threshold - how do companies establish a profit margin? For example, the cost of produced Hydrogen, o
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by mojomark 6y ago
I'm someone who hosts MANY meetings, and recognizes the importance/value of good meeting minutes. I often cringe when we have someone who does not understand the subject matter or worse - we forgot to ask someone to take minutes (
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by mojomark 6y ago
I hate my Samsung. All of our TV content comes through our Xfinity internet (no digital antenna, no cable box). However, when you turn the TV on the Samsung defaults to "Samsung TV" set of stations that look like local TV and have
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by mojomark 6y ago
That's interesting; I hadn't thought about the angle of losing access to "look-up" resources, which I too rely heavily on. I'd never have guessed stack or Wikipedia would be small enough to download locally. I was a
377.
Ask HN: Should society practice for an internet outage?
3 points by mojomark 6y ago|3 comments
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by mojomark 6y ago
TLDR: 42. (Kidding, it's apparently 1/137, but wouldn't it've been cool)
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by mojomark 6y ago
If you're interested in Vector Clocks, here is a much better explanation: https://link.medium.com/PvNkzXcsObb Basically, if you have a distributed logical system (i.e. a system that uses more than processor, possibly p
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by mojomark 6y ago
It sounds like you're argument is actually stating that probability is in fact a real attribute of physical systems, but the accuracy with which you can accurately predict a probabilistic event is dependant on the amount of information
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by mojomark 6y ago
Mr. Jennings... as it should be. Mr. Trebek, until next time.
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by mojomark 6y ago
That would be a mitigation for losing portions of the bubble field due to ship motion, but you'd be adding more air bubble ejectors, requiring a larger amount of compressed air which consumes more energy cumulatively. It's probabl
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by mojomark 6y ago
I'm a marine engineer and on my last ship (a tanker) we certainly investigated the use of hull air lubrication to improve fuel efficiency of the vessel. There are a wide number of energy saving technologies (e.g. from propeller devices
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by mojomark 6y ago
When I was a kid (early 80's) we used to go to the "Science Center" in Baltimore, Maryland (US). There were a lot of cool interactive displays/experiments. One was a fan blowing under an orange street cone, and a levitat
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by mojomark 6y ago
I don't understand why everyone calls the correlation between the number of storks and childbirths per country as "spurious". That's incorrect. There is absolutely a correlation, but it is the statement that the fabricat
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by mojomark 6y ago
After seeing Natick a few years ago, I pitched this very idea to DARPA TTO in person. I also spoke to the MS Natick folks about improving their approach a bit. Neither wanted to persue. Maybe someone is already doing it. Whatever the case,
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by mojomark 6y ago
You're correct, as a marine engineer, I can tell you that the biofouling problem is far from solved. To date, copper biocide works best, but is terrible for the environment. A lot of the new coatings are also 'speed-release',
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by mojomark 6y ago
Well if OP isn't going to thank you for the thoughtful response, then I will. Better than my goofy reference to CitySlickers... but come'on, if you watch that movie in full and don't learn something about self-worth and maybe
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by mojomark 6y ago
Curly : Do you know what the secret of life is? [holds up one finger] Curly : This. Mitch : Your finger? Curly : One thing. Just one thing. You stick to that and the rest don't mean shit. Mitch : But, what is the "one thing?"
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by mojomark 6y ago
The concept art looks eerily reminiscent of the buildings in Logan's Run (1), or perhaps vice versa. 1. https://www.imdb.com/title/tt0074812/

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