Title text: It's like someone briefly joined the team running the universe, introduced their idea for a cool mechanic, then left, and now everyone is stuck pretending that this wildly unbalanced dynamic makes sense.
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This comic pokes fun at the properties of plutonium, claiming that it is so unrealistically powerful that it may as well be random sci-fi jargon. Indeed, the ability for a metal to radiate free energy sounds impossible (this comic is likely a simplification). This is reflected by Megan and Hairy treating Cueball's idea as a joke.
There are devices that need substantial electrical power over long time – in the order of decades – but local sources of energy are insufficient or unavailable, yet constructing a power line or resupplying them with some power source (like fuel, fresh chemical batteries etc.) is either impossible or overly costly. Such devices include maritime beacons and buoys, automatic weather and science stations located in remote areas, and – most importantly – deep space probes and some planetary probes or science packs. Probes sent beyond Jupiter cannot effectively rely on photovoltaic panels for energy, because the large distance to the Sun means that the amount of solar radiation per unit of area is very low, requiring impractically large (and thus heavy) panels to provide enough energy. Carrying a lot of fuel also adds mass to the probe.
Instead, such devices usually use radioisotope thermoelectric generators (RTGs). In an RTG the natural radioactive decay of some unstable isotope (such as Plutonium-238 or Strontium-90) produces a lot of heat, which is then used to generate energy using thermopiles, which generate electricity directly from heat (actually temperature gradients) by employing the thermoelectric effect. The key element of an RTG, a pellet of radioactive material such as plutonium dioxide, could be facetiously described as a "power orb" – a lump of a substance that gives out heat apparently out of nothing.
Note that the radioactive material obviously doesn't produce this energy forever, although it can produce it so long the device will break before it gets out of energy. Mentioning this detail might make it seem more realistic ... on the other hand, mentioning that it stops producing energy because it transforms to lead might actually sound even less realistic to person who doesn't know how it works.
The title text references development of team-written episodic stories, such as video games, television shows, or comic series, and how after joining a team and implementing a mechanic, a writer can leave, and give others working on it little or no knowledge of how to handle a specific plot element or design.
- [Megan, Hairy, Cueball, and Ponytail are talking.]
- Megan: How will we keep the spacecraft supplied with heat and electricity?
- Cueball: We could use a power orb. They give off thousands of watts 24/7.
- Megan: Huh? How do you recharge it.
- Cueball: You don't. It's just made of a metal that emits energy.
- Megan: OK, come on.
- Hairy: Can we please be serious here?
- [Caption below the panel:]
- For something that's real, plutonium is so unrealistic.
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I feel like this is a reference to Kerbal Space Program - the RTG in the game runs on Bluetonium-238, and there is no half-life mechanic, leading to an actual power orb that provides stable power forever.188.8.131.52 08:56, 27 February 2019 (UTC)
Even though space is cold, it conducts so poorly that spacecraft would probably have more problems getting rid of heat than keeping heat, considering how isolated they are. Tharkon (talk) 16:43, 22 February 2019 (UTC)
- It actually has little to do with conduction; the heat radiates pretty effectively, especially as it gets "hotter" vs the surrounding radiation. 184.108.40.206 17:35, 22 February 2019 (UTC)
- You're right, spacecraft are cooled by radiation. Yet it is far less effective than conductive/convective cooling by blowing the surrounding medium (water, air, whatever) over the hot parts. It's so much easier to cool things down here on Earth! Cooling problems is one of the reasons why nuclear reactors are not very popular in space, they need massive cooling systems.
Reminds me of reddit.com/r/outside Linker (talk) 16:54, 22 February 2019 (UTC)
I put in how the title text makes a probable reference to game development. Netherin5 (talk) 17:41, 22 February 2019 (UTC)
- It could, with equal probability, be a reference to parallel universes. There's nothing anywhere that says anything about game development.... 220.127.116.11 18:29, 22 February 2019 (UTC)
- ”Cool Mechanic” “Unbalanced” and “Join the team” seemed like hints Netherin5 (talk) 18:33, 22 February 2019 (UTC)
- It seemed obvious to me it was a reference to episodic story development, as it looks like that happens with shows and comics all the time. Don't understand how it makes sense for parallel universes (except that this kind of happened with star trek and the introduction of the parallel reality) but recommend updating the article to include all interpretations. 18.104.22.168 21:20, 22 February 2019 (UTC)
- I thought it was more in the line of someone joining a D&D game, doing something crazy with their character then leaving, and the remaining players all have to keep up the story.
- (Unsigned: Please sign your posts!)
- Definitely refers to gaming, in my opinion: These phrases are used extensively in gaming circles & almost nowhere else.
- ProphetZarquon (talk) 23:09, 27 February 2019 (UTC)
This seems to be in the same vein as two other recent comics, Internet Archive and ArkXiv. Perhaps real things that seem unrealistic is a new topic of Randalls? 22.214.171.124 17:53, 22 February 2019 (UTC)
- Nope, it goes back at least to the 331st comic! 126.96.36.199 21:22, 22 February 2019 (UTC)
Re: "Note that the radioactive material obviously doesn't produce this energy forever, although it can produce it so long the device will break before it gets out of energy." The main problem with Voyager I and Voyager II is not that the devices on board have been broken, exhausted a finite reserve or otherwise failed, but that the power supply can not keep most of the machine powered anymore. In fact, if there was enough electrical power, most of the cameras and other sensors would still work; they might see much that far from the sun and other bodies, but they would work. The plutonium power source undergoes exponential decay, producing proportionally less power each year and each year, the NASA scientists have to decide which devices on the spacecraft need to power-down, never to turn on again, or maybe a device is so important, but needs so much power that they will turn it on for less and less time, sort of like rotating brown-outs. I think the Pioneer probes are in the same boat. Nutster (talk) 04:13, 23 February 2019 (UTC)
- Also because of the many restrictions on use of highly radioactive material, plus the basic weight factor, you would only use just the amount of plutonium required to power the craft fully over it's expected lifetime. After that lifetime you no longer have full power due to decay.188.8.131.52 05:47, 25 February 2019 (UTC)
- Actually, the half-life of the plutonium has a relatively small effect on the loss of power, the degradation of the thermocouples is a more significant cause of the power loss of RTGs on long term spacecraft missions. Plutonium loses about 0.79% of the available energy every year due to decay. TimO (talk) 09:14, 25 February 2019 (UTC)
Could someone perhaps expand on the term "implementing a mechanic"? In New Zealand English at least, a mechanic is a person who works with machines. I thought this was maybe a synonym for "implementing a mechanism", but it seems to have a specific meaning in the team episode writing sense discussed here. 184.108.40.206 23:41, 24 February 2019 (UTC)
- As a non-native speaker, I am familiar with the word "mechanic" on a gameplay level. See https://en.wikipedia.org/wiki/Game_mechanics. I am fairly certain that is what Randal is refering to. 220.127.116.11 07:34, 25 February 2019 (UTC)
- This use of the word "mechanic" is extremely confusing. To most English speakers it means someone who fixes machines, usually cars. Either remove it or explain the unusual jargon meaning in this context
- In the US, we also call that a mechanic, or a repairman. But in this context, mechanic is referring to mechanics of a story or game, a synonym to feature. Hope that helps, and sign your comments. Netherin5 (talk) 15:04, 25 February 2019 (UTC)
- Tried to explain "implementing the mechanic" (which is actual game developers' jargon) but had to edit out the references to TV shows, comic series and whatever was there before - I have no knowledge how these are created and discussed in their own jargon. The explanation is rather long but the topic is a bit convoluted indeed and hard to explain in plain words (for me at least). Thanks, Netherin5, for trying to fix it up. -- 18.104.22.168 18:10, 26 February 2019 (UTC)
- Mechanic in this case is short for "mechanical function", a method used in games (either physical or video) to allow changes to the game state. For example, a board game may use dice for the purpose of moving a token a number of spaces. That would be referred to as a movement mechanic. In a video game, mechanics might include movement (walking, jumping) or crafting (combining multiple items to produce a new one). --22.214.171.124 16:27, 28 February 2019 (UTC)
The explanation of the title text regarding computer games could be expanded to just games in general. This could also refer to a table top Role Playing Game where the game master who runs the universe through a series of narrative follows the game engine's mechanic. Some guest GM came in and introduced a bunch of stuff but left. The rest of the players continue to play with the current dynamic even if its unbalanced and should not make sense. Long stretch, the character in the comics are playing an role playing game (hence the questions) where the engine requires them to stick to reality. When Cueball suggested the power orb, everyone dismissed it as an unobtanium that Cueball made up and didn't realize that one of such thing exist in real life too.