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![[0783] Hot And Cool](/comics/2016-05-05-0783-hot-and-cool.png "[0783] Hot And Cool")
- Landon: Goodbye, left hand. It was nice knowing you.
- Yuna: The flames are only 50° C, and they last f-o-r-e-e-e-v-e-r-r-r!
- Larisa: And the finishing touch…!
- Landon: Okay, this is kinda cool.
- Larisa: Yuna, go and make a bathtub full of this stuff!
- Yuna: All right. But first let’s set his whole body on fire!
- Larisa: Excellent idea!
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Though that is cool, I think he forgot about the whole FOREVER part.
Sell that stuff to the WWE. Live harmless fire? They’d pay a fortune for that stuff.
50C/122F is still hot enough to do serious damage. At the very least he’ll have the equivalent of a bad sunburn in a few minutes. Hopefully the novelty will wear off before it gets past where they can treat it with lotion and gauze.
Well, at least they were considerate enough to test with his left hand (assuming he’s right handed).
….Larissa’s panties also just burst into flame.
Tags: larisa, fire, setting this on fire
Why is there the same tag thrice?
I don’t want to set the world on fire.
I just want to burn with you.
Consdering that Heatstroke occurs at 41 C, and the hottest temperature a human body has survived is 46.5 C, 50 degrees Celsius flame is STILL PRETTY DANGEROUS HOT! I was gonna put another D-word in there.
The question is, will the bathtub be for Landon, for Larissa….
…or for both of them?
I approve of yuna using °C as temperature unit when talking to non-scientists. Pretty sure she’d use Kelvin otherwise.
70% isopropanol makes pretty flames and is a lot safer than nitromethane.
I’ve used 70% IPA to set my arm on fire many times as a party trick and never suffered any injury.
NOTE: If you’re determined to try this, find someone who has experience to teach you how. And keep a bucket of water handy.
Anon wrote:
While true, the comic does take place in the US and she’s speaking to middle school students. Factor in average American has no clue what 50 centigrade is.
So, my fellow Americans the flames are just a little over 120 degrees Fahrenheit.
Next comic: Both of them are fully on fire and kissing, in the center of a massive burning heart on the floor.
…And then Landon walks in.
@ Thorin Schmidt:
I’m pretty sure you’re thinking of core body temperature. Exposing your skin to something in the 50 C range wouldn’t do much damage unless the contact was extremely prolonged. For comparison, the EPA recommended setting for residential water heaters is 120 F, or 49 C. Heck, I can lay my hand flat on an 85 C cooking grill without damage, although if I left it there for more than a second or so it would quickly get painful. (Oh, and make sure the grill is nice and clean before trying this. Clinging grease is not fun.)
You probably would want to put it out fairly quickly, though. A high school classmate of mine did something very much like this for a science demonstration once. He let it burn a little too long and ended up with first degree burns, not to mention singeing all the hair off his arm.
Oh, and “nitromethane soap” sounds absolutely horrific. Nitro is nasty stuff, and mixing flammable liquids with soap tends to produce something similar to napalm. Some sort of alcohol-based solution would probably be a lot safer…
Whats going to happen when Landon’s mom finds out about this?
Okay, I’ll make the obvious joke: I doubt Landon needs to use his left hand as much since he met Larisa.
I’ve been in saunas that were over 60 C for fifteen minutes without any problems. As long as he can breathe okay and the flames only last a few minutes he should be fine. They might damage or melt his clothes, though.
Does anyone else have a bad feeling about this?
At the very least, inhaling even 50C flames would be super-bad.
@ Xellos: Because with Larrisa you can never have to much fire.
@Comments arguing about the danger of the temperature: there’s no clear answer to this without knowing how much of the heat is conducted into the arm. In terms of radiation, 50°C is nothing, so the real question is about the innermost temperature and heat conductivity of the liquid.
Considering Yuna’s past experiments and that the flames are supposed to burn forever, the arm might just as well be in danger of too much cooling.
@ feartheswans:
Fun fact: I once read a science fiction novel where the author obviously hadn’t looked up how to covert between F and C, they’d apparently just subtracted 32. And thus a planet was described as having a pleasant surface temperature of 50 degrees C.
O-kaaay, can we consider this as Larissa and Landon’s wedding ceremony?
What could possibly go wrong?
While not as nasty as a lot of chemicals nitromethane has it issues. It is a skin and CNS irritant. As Wizard points out if mixed with a soap it would be rather like napalm in nature; sticky and hard to get rid of. The soap would slow down evaporation and so it would burn a little cooler. There was discussion of using an alcohol instead. My only experience related to this is model airplane fuel (Methanol, nitromethane and castor oil) While it burns with a relatively cool flame it is definitely hotter that 50 C. Still, you gotta love mad science.
Has Larisa realized yet that doing that to his whole body would require that he strip?
Perhaps she only means that the tips of the flames are 50C. The base of the flame is therefore much cooler, so perhaps Landon isn’t even feeling a thing.
https://www.quora.com/What-is-the-highest-temperature-a-human-being-can-survive
So seems like it’s quite safe, hot smooching incoming?
While prolonged contact with something of this temperature might cause some damage (either some skin damage or in case of a whole body exposure heat stroke), one needs to keep in mind that most of the heat from burning is consumed to evaporate the stuff to be burned, so You don’t heat up that easily. I think that chemical irritation of skin and lungs would be a more important issue.
@ feartheswans:
That’s just a regular July temp for me. He’ll survive.
please give us the reaction of landon´s mom to her sons ‘demonic transformation caused by the anti-christ’!!
@ Mechwarrior:
Hm depending on the humidity 50°C can be quite pleasant.
e.g. I’ve been in Kuwait with 55 °C and a humidity of something like 15%… and it was quite nice. OBVIOUSLY you NEED to drink A LOT or you’ll get heatstroke in a really short time.
http://youtu.be/pTvbXMRMnHo
@ Bahamuttone:
In no universe is 131 degrees F with humidity pleasant. With 15% humidity, that feels like more than 140 degrees F.
In Egypt, my shoes started to melt at about that temperature.
I actually have everything I need for this stunt. Though hand-holdable fireballs is first on my list of pyro party tricks.
@ feartheswans:
Bahamuttone wrote:
While Celsius is technically a centigrade scale (based on a 100-point range), “centigrade” is not well defined. Celsius is a scale that is rigidly defined scientifically based on Kelvin.
Larissa, there are important bits of Landon that you might not want to radiate a temperature of 50C (122F) forever…
Why do they need to set his entire body on fire before filling the bathtub? Seems like the fastest way to accomplish that would be to throw him in a bathtub full of the stuff.
Though Yuna is a genius, her experiments usually are total… let’s say give unexpected results. I wonder if he’ll actually get cold since his sweat is going to turn into vapor MUCH faster and he’ll be sweating A LOT like this?
Vorlonagent wrote:
Eyes, lungs, other important organs?;\
dzamie wrote:
Realized? That’s probably her plan.
George wrote:
Yee.The Watcher wrote:
Both, duh. Actually, maybe all 3 of them?
Did some checking and it seems like noxious heat is typically considered to be somewhere around 42-48 degrees centigrade depending on ambient temperatures of previous exposure. Noxious indicating discomfort via pain. This means that 50 degrees would immediately cause actual pain in the subject.
Granted this is a comic and a preadolescent girl created this special formula so it’s to be taken with a grain of salt. I do feel that in the past we have seen attempts to be grounded in science so it might be nice to see some kind of alteration that doesn’t involve human torture possibilities.
@ Arthur:
Not so safe…
“Exposure to nitromethane irritates the skin and affects the central nervous system causing nausea, dizziness and narcosis. Produces toxic oxides of nitrogen during combustion.”
Professor Feynman (God rest his soul) talked about doing this trick with a flammable liquid, the composition of which escapes me. He did it as a party trick: dunk his whole arm in, light it up, and show everyone he was fine.
He did this twice and nothing really happened. The third time he was a little older and had grown arm hair. Without the hair the liquid was a complete cover against the flames. WITH ARM HAIR the heat now had many paths to travel straight to his skin. He screamed and went looking for the fire extinguisher.
Thankfully Landon has not hit puberty. Unfortunately his head will be scorched if they dunk him completely.
50C is pretty hot, having that near you for any amount of time will be like being in a desert. You’d need somewhere between 20-30C to be safe.
source: living in a desert which got up to 50C sometimes.
@ Thorin Schmidt:
For setting his whole body on fire, yes, but for just his hand and forearm, it’s no different than taking a hot bath.
@ dzamie:
Yes?
@ Wandre:
And yet people are living in regions where temperatures regularily go that high. A finnish sauna usually starts at 80°, some will go way higher. You can’t just simplify it down to the number alone. 50° degrees hot metal pressed to my skin? Painful. 50° degrees hot air on my skin? I can manage.
HardWearJunkie wrote:
I thought of this example when I saw the beginning of this arc on Monday. Feynman used benzine, but coated his hands with water first. As he reported, “the benzine burns fast and the water keeps it cool.” The problem with repeating the trick in college was that the body hair acted like a wick and let the burning benzine reach his skin. Possibly covering his skin with water first was part of making sure the substance was “applied correctly.” 😉
None of this helps with the toxic products of these reagents, however. And I think Feynman doused his hands (or burned off the benzine) before all the water evaporated. Even if they put water on Landon’s skin before the ointment, it’s going to boil off sooner than that.
@ Xellos:
Nice one. B|
Am I the only one surprised that Larissa didn’t first insist that this be done to her?