Search found 285 matches

by KarenRei
Sat Feb 16, 2019 1:21 am UTC
Forum: Individual XKCD Comic Threads
Topic: 2112: "Night Shift"
Replies: 33
Views: 6217

Re: 2112: "Night Shift"

I set my white balance wrong and suddenly everyone is screaming at each other about whether they've been to Colorado.


********* I'VE STOPPED AT THE AIRPORT IN DENVER, MOTHERF***ER!!!!! *********
by KarenRei
Mon Jan 21, 2019 1:17 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 2101: Technical Analysis
Replies: 31
Views: 6632

Re: 2101: Technical Analysis

That's exactly how I feel about technical analysis. Every time I read a technical article about an instrument I'm interested in it sounds to me like Turkish coffee fortune telling... and don't get me started on technical analysis of cryptocurrencies. It always puzzled me how this could work; the wo...
by KarenRei
Mon Jan 21, 2019 8:50 am UTC
Forum: Individual XKCD Comic Threads
Topic: 2101: Technical Analysis
Replies: 31
Views: 6632

2101: Technical Analysis

https://imgs.xkcd.com/comics/technical_analysis.png Mouseover: "I [suspect] that we are throwing more and more of our resources, including the cream of our youth, into financial activities remote from the production of goods and services, into activities that generate high private rewards disp...
by KarenRei
Mon Jan 07, 2019 11:33 am UTC
Forum: Individual XKCD Comic Threads
Topic: 2094: "Short Selling"
Replies: 44
Views: 10471

Re: 2094: "Short Selling"

Very true. Which is why the timing on Left's switch was so perfect. With Tesla having a free cash flow of nearly a billion dollars in Q3, it became obvious that there was no need for the stock price to actually be above $360 in March '19, since Tesla would clearly be able to meet its goal of paying ...
by KarenRei
Sun Jan 06, 2019 10:44 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 2094: "Short Selling"
Replies: 44
Views: 10471

Re: 2094: "Short Selling"

And on the subject of Left and Tesla: Left and other activist short sellers were responsible for the attempt to kill Tesla this summer. Which failed. Left suddenly, right before the Q3 report, betrayed his fellow shorts and switched from anti-Tesla PR to pro-Tesla PR after reversing from a short to ...
by KarenRei
Sun Jan 06, 2019 5:29 am UTC
Forum: Individual XKCD Comic Threads
Topic: 2094: "Short Selling"
Replies: 44
Views: 10471

Re: 2094: "Short Selling"

The problem is just that: that short selling is invariably associated with smear campaigns, and not only is FUD generally more effective than positive PR - it's also a far worse thing to destroy a healthy company than that some idiots invest in an unhealthy company and lose their money. And yes, sho...
by KarenRei
Sat Jan 05, 2019 1:13 am UTC
Forum: Individual XKCD Comic Threads
Topic: 2094: "Short Selling"
Replies: 44
Views: 10471

Re: 2094: "Short Selling"

Hypothesis: Randall is a TSLA (Tesla) fan. Short selling has been a hugely controversial topic concerning Tesla over the past year, where it it was for a long time the most widely shorted stock in the US, and whose CEO had a number of very public spats with short sellers. The stock has also gone thr...
by KarenRei
Thu Dec 06, 2018 1:02 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 2081: Middle Latitudes
Replies: 27
Views: 5852

Re: 2081: Middle Latitudes

Our beaches appear to be designed for killing off tourists who wade into the water on stormy days while ignore the giant, prominent "Danger - Rogue Waves" warning signs. What is it about being on vacation that makes people act like idiots?
by KarenRei
Wed Dec 05, 2018 3:38 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 2081: Middle Latitudes
Replies: 27
Views: 5852

2081: Middle Latitudes

https://imgs.xkcd.com/comics/middle_latitudes.png Alt-text: "Snowy blizzards are fun, but so are warm sunny beaches, so we split the difference by having lots of icy wet slush!" https://xkcd.com/2081/ As someone who lives in Reykjavík, I'm not sure that he knows what high latitude winters...
by KarenRei
Fri Oct 26, 2018 3:14 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 2064: "I'm a Car"
Replies: 19
Views: 5242

Re: 2064: "I'm a Car"

Someone posted on one of the Tesla forums today about their first incident of "Autopilot Road Rage". There was a one-car gap ahead and behind them, a car merged into the front gap at the same time as one tried to merge into the rear gap. The vehicle ahead of the front-merger suddenly had t...
by KarenRei
Fri Oct 19, 2018 8:10 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 2061: "Tectonics Game"
Replies: 69
Views: 16232

Re: 2061: "Tectonics Game"

Add me to the list of "seriously disappointed" people! One of my ongoing temptations (which I've resisted because I know I'd never finish it) is to make a universe simulator that uses multiphase CFD simulations of whole planets (and the phenomena that alter them) to train neural nets, so y...
by KarenRei
Sat Sep 08, 2018 11:24 am UTC
Forum: Individual XKCD Comic Threads
Topic: 2043: Boathouses and Houseboats
Replies: 47
Views: 11224

Re: 2043: Boathouses and Houseboats

J%r wrote:What about roadhouses?

Image


Indoor go-cart track.
by KarenRei
Tue Aug 07, 2018 9:04 am UTC
Forum: Individual XKCD Comic Threads
Topic: 2029: "Disaster Movie"
Replies: 21
Views: 5383

Re: 2029: "Disaster Movie"

I would totally watch this movie. It'd be hilarious.
by KarenRei
Sat Jan 20, 2018 2:38 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0325: "A-Minus-Minus"
Replies: 130
Views: 67950

Re: 0325: "A-Minus-Minus"

In the spirit of this comic, when I received an email to the wrong address (someone with the same name as me who lives in California; I live in Iceland), instead of deleting it, I replied. The person was a flooring installer in California, sending me a draft of an upcoming project. =================...
by KarenRei
Wed Dec 06, 2017 2:18 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1924: "Solar Panels"
Replies: 60
Views: 10639

Re: 1924: "Solar Panels"

install even cheaper solar panels next to the road; no need for foundations, as there would be no loads on the panels LOL. Sorry, engineering doesn't work like that. What you're describing is otherwise known as "debris flying into traffic at high speeds during a windstorm". On my land I h...
by KarenRei
Wed Dec 06, 2017 2:22 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1924: "Solar Panels"
Replies: 60
Views: 10639

Re: 1924: "Solar Panels"

60% is completely unrealistic. I was thinking something more like 30%, optimistically speaking. The dirt is a huge problem. Even on tilting panels raised above ground level, dust accumulation results in losses between 1% and 50%. http://ucsdnews.ucsd.edu/pressrelease/cleaning_solar_panels_often_not...
by KarenRei
Wed Dec 06, 2017 1:48 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1924: "Solar Panels"
Replies: 60
Views: 10639

Re: 1924: "Solar Panels"

To put a more precise point on it: here's the breakdown of the costs for a solar farm: https://www.nrel.gov/docs/fy16osti/67142.pdf Page 38: Panels are $0,64/W out of $1,42 on a large (>100MW) solar farm, or out of $1,82 on a small (<5MW) solar farm. That's 45% and 35%, respectively. The non-panel o...
by KarenRei
Wed Dec 06, 2017 1:03 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1924: "Solar Panels"
Replies: 60
Views: 10639

Re: 1924: "Solar Panels"

Karen, while your post is interesting and certainly a far cry from the "solar freaking roadways" lunacy, I have to say I am still thoroughly unconvinced by the concept. The major advantages relating to land use and ease of construction only really apply to areas where the land near the hi...
by KarenRei
Tue Dec 05, 2017 3:07 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1924: "Solar Panels"
Replies: 60
Views: 10639

Re: 1924: "Solar Panels"

Is there any particular reason why this solution should be exclusive to solar roads? No. Concrete and brick pavers are used for roads in some places , but generally for aesthetics; historically, they've usually been more expensive because they're generally laid by hand. That said, you can now get p...
by KarenRei
Tue Dec 05, 2017 1:53 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1924: "Solar Panels"
Replies: 60
Views: 10639

Re: 1924: "Solar Panels"

Big screwup in this comic by using the word "easier" rather than "better". It may be "easier" for someone to put solar panels in their yard than on their roof. Heck, it might even be easier for them to put them in a tree. That doesn't make it "better". Also, r...
by KarenRei
Wed Nov 15, 2017 1:17 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1916: "Temperature Preferences"
Replies: 82
Views: 17329

Re: 1916: "Temperature Preferences"

Reykjavík calling! And yes, while our winters aren't that cold (though very windy and wet!), our summers are wonderful. Average daily high in July is something like 15-16°C (or, for Americans: 15-16°C also; come on, learn metric you guys...)
by KarenRei
Fri Feb 03, 2017 2:15 am UTC
Forum: What If?
Topic: What-if 0153: "Hide the Atmosphere"
Replies: 46
Views: 27702

Re: What-if 0153: "Hide the Atmosphere"

As some side trivia, "freezing out the atmosphere" is a serious proposition for terraforming Venus. Big sunshade, freeze it out steadily, let it concentrate in the lowpoints (which deepen from the weight), manualy assist with concentrating the rest, then pave over it with insulation and co...
by KarenRei
Mon Jan 09, 2017 3:29 pm UTC
Forum: Science
Topic: Light in a fog
Replies: 14
Views: 3859

Re: Light in a fog

Bringing up a mirror just complicates it. Because sure, in the direct-collimated-sunlight case I could add a mirror beside the original solar panel that reflects light onto the back of the panel and causes its generation to double. But I could also add a mirror that would make its generation increas...
by KarenRei
Sun Jan 08, 2017 9:05 pm UTC
Forum: Science
Topic: Light in a fog
Replies: 14
Views: 3859

Re: Light in a fog

Indeed, that's what intuition says. The thing that makes me hesitate is that if you put the same double-sided solar cell in 1000W/m² direct sunlight, you only get 200W, not 400W. There's a naggling feeling that the two situations should be equivalent and I'm trying to figure out how to convince myse...
by KarenRei
Sun Jan 08, 2017 4:05 pm UTC
Forum: Science
Topic: Light in a fog
Replies: 14
Views: 3859

Re: Light in a fog

If you just had a layer of perfectly scattering fog in between the sun and the solar panel, then yes, 1/6 of the light will leave the layer in 1/6 of the solid angle available, because it's evenly distributed across all angles and we've decided that 1/6 of them are useful, while the other 5/6 of th...
by KarenRei
Sun Jan 08, 2017 1:14 pm UTC
Forum: What If?
Topic: What-If 0145: "Fire From Moonlight"
Replies: 157
Views: 78867

Re: What-If 0145: "Fire From Moonlight"

Topic related to this thread here:

viewtopic.php?f=18&t=121131&p=4129899#p4129899
by KarenRei
Sun Jan 08, 2017 12:29 am UTC
Forum: Science
Topic: Light in a fog
Replies: 14
Views: 3859

Re: Light in a fog

Probably neither. I don't think you can assume a constant 1000W/m² radiation from every direction everywhere inside the fog. Even if all the scattering inside the fog evens out, you have a huge portion of the light that'll get reflected back to the sun immediately after entering the fog. Summing up...
by KarenRei
Sat Jan 07, 2017 10:51 pm UTC
Forum: Science
Topic: Light in a fog
Replies: 14
Views: 3859

Light in a fog

I want to make sure my grasp on this is correct. Envision a fog with infinitely long extinction coefficient (perfectly reflective particles) lit up by the sun with a given solar constant (let's say 1000W/m^2). Inside the fog you place a 20% efficient 1m^2 solar panel that functions equally well from...
by KarenRei
Wed Dec 07, 2016 12:09 pm UTC
Forum: What If?
Topic: What-If 0153: "Peptides" [removed]
Replies: 22
Views: 18666

Re: What-If 0153: "Peptides"

With rare but extant Selenocysteine (O) and Pyrrolysine (U) and without the colonial spelling, "Deinsitutionali s ation" is a perfectly cromulant peptide chain... Well, geez, if you're going to do that then you can do "pneumonoultramicroscopicsilicovolcanoconiosis" (45 letters) ...
by KarenRei
Tue Dec 06, 2016 12:59 pm UTC
Forum: What If?
Topic: What-If 0153: "Peptides" [removed]
Replies: 22
Views: 18666

Re: What-If 0153: "Peptides"

This question is really weak. Is knowledge of grep and the mere existence of "/usr/share/words" really that rare of a skillset? egrep -i "^[ARNDCEQGHILKMFPSTWYV]*$" /usr/share/dict/words | awk '{print length, $0}' | sort -n | cut -d " " -f2- egrep -i "^(ALA|ARG|ASN...
by KarenRei
Sun Oct 30, 2016 8:58 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1749: "Mushrooms"
Replies: 47
Views: 9875

Re: 1749: "Mushrooms"

I've got mushrooms in the garden. I've got Armillaria mellea . It ate the hedge. It looks a lot like Galerina marginata so I'm not going to eat it right back. Mushrooms are the primary reason I wish that smartphones came with DNA sequencers. :Þ Re. A. virosa/Destroying Angel... it's famous for its ...
by KarenRei
Fri Oct 21, 2016 4:13 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1749: "Mushrooms"
Replies: 47
Views: 9875

Re: 1749: "Mushrooms"

A friend of mine calls fungi "the vampires of the plant world".

Not exactly phylogenically correct, but...
by KarenRei
Wed Oct 19, 2016 3:23 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1747: "Spider Paleontology"
Replies: 43
Views: 9437

Re: 1747: "Spider Paleontology"

I have to admit that I'd be totally chuffed to find evidence that Dinosaurs* built elaborate bowers surrounded by carefully segregated piles of colored materials, like the bowerbird . Unfortunately, that's probably about as unlikely as Randall's future folk learning about spiderwebs without using t...
by KarenRei
Tue Oct 18, 2016 4:10 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1747: "Spider Paleontology"
Replies: 43
Views: 9437

Re: 1747: "Spider Paleontology"

So, if I'm understanding you correctly, you're arguing that the majority of the diversity among dinosaurs can be found in birds, a lineage 65 million years old, even though dinosaurs had already been diversifying for 170 million years? To not put too fine of a point on it: the dinosaurs are defined ...
by KarenRei
Tue Oct 18, 2016 2:11 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1747: "Spider Paleontology"
Replies: 43
Views: 9437

Re: 1747: "Spider Paleontology"

Birds have had 65 million years to diversify. And dinosaurs had 170 million years to diversify before getting up to the point of further diversifying into the subset of dinosaurs known as birds - your point? As birds are a subset of dinosaurs, it's inherent that their diversity will be less than th...
by KarenRei
Mon Oct 17, 2016 11:10 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1747: "Spider Paleontology"
Replies: 43
Views: 9437

Re: 1747: "Spider Paleontology"

Probably best done with atomic-level physical crystal manipulation (multi-atom level of resolution, to deal with error correction after random radiation hits.... Store it at L4 or L5 (or both?) of Mercury (stable, relatively clean of crossing asteroids compared to other planets), with a planar whip...
by KarenRei
Mon Oct 17, 2016 1:38 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1747: "Spider Paleontology"
Replies: 43
Views: 9437

1747: "Spider Paleontology"

http://imgs.xkcd.com/comics/spider_paleontology.png Alt-text: "Whenever you see a video of birds doing something weird, remember: Birds are a small subset of dinosaurs, so the weirdness of birds is a small subset of the weirdness of dinosaurs." --- I think people who design CG dinosaurs w...
by KarenRei
Tue Sep 13, 2016 11:36 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1732: "Earth Temperature Timeline"
Replies: 540
Views: 133704

Re: 1732: "Earth Temperature Timeline"

SecondTalon wrote:
Stargazer71 wrote:meaniehead as a pejorative about a dozen times


Here's what's going to happen.... ... (snip)


Where's a "Like" button when you need one?
by KarenRei
Tue Sep 13, 2016 9:56 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1732: "Earth Temperature Timeline"
Replies: 540
Views: 133704

Re: 1732: "Earth Temperature Timeline"

So, apparently Elon Musk is an XKCD fan ;)

https://twitter.com/elonmusk/status/775632728548970500
by KarenRei
Mon Aug 22, 2016 2:21 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1723: "Meteorite Identification"
Replies: 30
Views: 9664

Re: 1723: "Meteorite Identification"

Despite knowing that the vast majority of things people suspect are meteorrites aren't, I once got tricked into thinking that an unusual shaped ("fingerprint"-looking), highly naturally polished piece of basalt might be when it easily deflected my studfinder. It was then that I learned tha...

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