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dbsmith83

814 karma · joined August 17, 2016

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dbsmith83··on I no longer grade my students’ work, and I wish I had stopped sooner
I kind of don't like this approach. I grant there is a huge discrepancy between students in reading/writing ability coming into a class, but forcing everyone to put in the same effort didn't fly in my math and science classes, so why should it be different here? Instead of being able to use my extra time that I didn't need to use in my literature classes by studying other things, I had to put in more effort to make my writing "extra extra" good. Conversely, if someone was a math wiz, they could use the extra time not spent studying math to study literature, or whatever else.
dbsmith83··on Reinstating our SAT/ACT requirement for future admissions cycles
> Poor kids are getting 'well rounded' by spending summer break at work, saving enough money to survive the school year.

This is an interesting point: why shouldn't work count towards being well-rounded? If anything, work is much more grounded in reality, and a lot of kids who never had to work in high school and college would come off as out of touch (at least to me, as someone who did work thru high school and college). It would be nice if work experience (even if unrelated to a field) was valued as much as being part of a silly club.

dbsmith83··on What’s a fire and why does it burn? (2016)
> It says black bodies emit photons, but...how exactly?

When an object has any temperature above 0K, that means the chemically bonded particles are moving around/vibrating. This movement of charged particles (release of internal energy) creates electromagnetic radiation (photons).

The other radiation you are talking about is also energy being released as photons, but it is from electrons in an excited state falling to a lower energy state.

Molecules can take in energy differently. Some frequencies of incoming energy produce bond movement/vibrations, and other frequencies can excite an electron's state. Consequently, when the energy is released, it can be in different frequencies (infrared/heat, visible light, UV, etc.) depending on the amount of energy lost. Since electron orbitals are discrete states, the release of energy from an electron going to a lower orbital is a discrete frequency of light.

dbsmith83··on A 9-line summary of textbook physics
If a cataclysmic extinction event occurred, I doubt a little bit of highlighting or underlining is going to cause significant burden on mankind's ability to relearn things. I do agree though, that if you don't own the book you probably shouldn't mark in it.
dbsmith83··on I'm Too Risk-Averse for Index Investing
The article is all about the really long overview though. It is basically arguing that the market gaining is not a given. See the Japan example starting around 1990. That was over 30 years ago. If you look at Berkshire Hathaway 20 years back, it is clearly beating out the S&P500 by a lot.

> Ten years can be a long slog to stick with a particular stock if your future retirement / financial future depends on it.

Agreed. I hope to not be very invested in the stock market when I only have 10 years of work left. Seems too risky.

dbsmith83··on I'm Too Risk-Averse for Index Investing
You can always just let someone else do the research and buy shares of Berkshire Hathaway
dbsmith83··on Secrets to Great API Design (2019)
> Learn how to make your API stand out from the rest ...

I see what did there

dbsmith83··on China markets in turmoil as Russia ties add to list of risks
> is the cheapest and least useful form of reporting known to mankind

Maybe not the most useful form of reporting.. but the least useful form known to mankind? After reading the article I think there's more to the analysis than just that.

dbsmith83··on White noise improves learning by modulating activity in midbrain regions (2014)
This is genuinely creepy sounding. It might be less creepy if they didn't compress the time so much
dbsmith83··on White noise improves learning by modulating activity in midbrain regions (2014)
Do you have a sample you could provide?
dbsmith83··on New York Times tech workers vote to certify union
Please, just because something is not perfect doesn't meed you need a union. I can speak from actual experience about how shitty unions are. Can you say the same? If you want to be treated like a child and micromanaged so that the company can protect itself against the worst employees, then by all means, join a union. If you want to sacrifice your individual privileges to help prop up everyone who works less hard than you, then join a union. This lofty idea about opposing destructive forces is naive hogwash.
dbsmith83··on Defensive tactics from the modern history of urban warfare
You mean besides the one where he said he wasn't planning an invasion? Use Google and I'm sure you can find some. I have to say, you really must be enjoying the kool-aid. Every leader tells lies. If you really can't think of an example of Putin lying, then I feel sorry for your naivety or complete and utter pathological denial.
dbsmith83··on Defensive tactics from the modern history of urban warfare
Indeed, and the same goes for Russia, my friend.
dbsmith83··on Defensive tactics from the modern history of urban warfare
> So free to be used as a chess piece against Russia by Western masters

Regardless of your political opinion, it doesn't negate the fact that people still want the freedom to choose

dbsmith83··on Defensive tactics from the modern history of urban warfare
> Can you explain why those terms are unacceptable?

It's obvious. The people want to be free to control their own destiny.

dbsmith83··on Carl Akeley’s fight to the death with a leopard (1923)
All life spreads and lives wherever they can--humans included. That's just how life on Earth works. It is the natural way of things, for better or worse
dbsmith83··on You can now send replies from your Duck Addresses
UPDATE: It now works for me. I got an email from duck telling me about the feature, so I guess they are rolling this out slowly instead of to everyone at once.
dbsmith83··on You can now send replies from your Duck Addresses
> For most Duck Addresses, replies just work. Simply reply to any email sent to one of your Duck Addresses as you normally would. We route your replies through duck.com so they're delivered from the Duck Address they were sent to. If your forwarding address is on a unique domain without an SPF record, replies sent from Duck Addresses aren't supported.

Does this work with gmail for anyone else? It definitely does not for me.

dbsmith83··on The window to deploy surveillance-resistant systems is running out
This is ironic considering Russia and China are already quite authoritarian societies. China is especially heavy handed on the surveillance side of things.
dbsmith83··on Elsevier embeds a hash in the PDF metadata that is unique for each download
Easier to just strip out the metadata
dbsmith83··on No amount of alcohol is good for the heart, says World Heart Federation
> No, they didn't - you do not need (or should) boil the water. If you did boil it, you would then need to let it cool down before adding the yeast. Home-brew kits suggest using a fairly small amount of hot water to disolve the malt extract, and to get it up to fermentation temperature.

Boiling is a pretty important step in brewing, both in the home and in the commercial brewery. Yes you could technically make beer without boiling it, but that is not the norm. Boiling is used not only for sanitation, but also to allow the hop oils to isomerize and become soluble in the wort, as well as reduce the wort volume to make the wort more concentrated, since the sparging step produces a lot of diluted wort (when using grains rather than extract). Wort in a can (malt extract) means you may not be concerned with concentrating the wort since you could control that, but you still generally want to isomerize the hop oils.

Your point about needing to wait for the wort to cool is correct, but that's precisely what brewers do.. they cool the wort until it gets to yeast 'pitching' temperature

dbsmith83··on Locked out of 'God Mode', runners are hacking their treadmills
I really wonder about the payoff in the continual cat and mouse game here. At some point, you are going to be paying a sizeable sum to your devs to try a lock out a relatively small amount of technically capable people who will circumvent the system rather than pay a subscription fee. I agree making a little harder once probably convinced a few people to pay up...but after that it has to be diminishing returns and eventually negative returns. I wonder what the tradeoff would be if they marketed their system was one that as open and you could do so many things with it. Like, imagine if the commercials showed how you could use your treadmill but also connect to any app you wanted, like Netflix. To me, that would be a big draw.
dbsmith83··on Locked out of 'God Mode', runners are hacking their treadmills
The remedy for that is a crack
dbsmith83··on FSB arrests REvil ransomware gang members
> The raids are also interesting because you don't see the same flamboyance we saw from eastern European carders after their raids. Wheres the pet tiger? And the foreign sports cars?

The article mentions:

"Authorities said they seized more than 426 million rubles, $600,000, and €500,000 in cash, along with cryptocurrency wallets, computers, and 20 expensive cars."

I doubt they were all lower-level personnel

dbsmith83··on Dark Energy Spectroscopic Instrument (DESI) Creates Largest 3D Map of the Cosmos
My God, it's full of galaxies
dbsmith83··on Blame Cronyism, Not Capitalism
Indeed, over-regulation is cronyism
dbsmith83··on Blame Cronyism, Not Capitalism
Why would it have to rise to the level of lobbying in Washington? That's not how the majority of laws get enforced. It would be more like:

- Law for frivolous lawsuits created with criteria

- Company A engages in said behavior

- Company B files motion to dismiss based on said criteria

- Judge agrees and dismisses lawsuit, and warns of contempt if the behavior continues

dbsmith83··on Blame Cronyism, Not Capitalism
shrug I'm sure you can find much more examples of companies not behaving this way. This kind of behavior can be lessened with laws and penalties against frivolous lawsuits. It's hardly an indictment against the system itself.
dbsmith83··on Blame Cronyism, Not Capitalism
It's more complex and doesn't always go like that. If X' is a superior product objectively, then company B can find investors willing to back them and take on company A. Company A could itself be an investor in company B
dbsmith83··on Norton 360 Now Comes with a Cryptominer
> I don’t buy this argument that anti-virus leads to fewer people throwing their assets out

Just because you think people shouldn't behave a certain way doesn't necessarily mean they don't behave that way, though. There are definitely people out there who toss their laptops when they get cluttered with malware

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