Here’s a thought I’m tucking into my metaphorical pocket for 2024: not every doodle is meant to be posted and if something is meant to be shared it doesn’t need to be the “popular thing”. If it makes like 1 person happy that’s good enough for me
Transcribed: ["Oh how I've missed the taste of you..." "Wriothesley..."
"It's been two weeks since the incident and I haven't got a chance to see you" "I apologise.. There was so much to a-" "Here~ You deserve a good rest after all that's happened~"
"Tonight, allow me to do all the work. I want to make you relax." "Wh-" "Hah, Don't worry. I am not going anywhere"
"I know how hard it is for you to just lean back and relax so I thought we could try something~ now where were they... Oh! Here we go~ Sooo~ How about we t-"
i know most people have seen it but i cant emphasize how much this is literally my favorite breath of the wild clip of all time. also i can never fucking find this clip when i need it especially in high definition so here it is
Time for another fusion reactor science lesson! You can view the rest of my Fusion Science Lessons and also just cool stuff about my job under the #fusion tag.
So there are two broad techniques for building fusion reactors that have seen the most research: Inertial confinement fusion, and magnetic confinement fusion. Let’s dig in!
Inertial Confinement Fusion:
An inertial confinement machine fires an array of powerful lasers at a pellet of deuterium and tritium, suspended in the middle of a spherical chamber. The fuel pellet is compressed to an incredible density, and releases enormous amounts of energy as fusion reactions take place. The biggest ICF machine in the world is at the National Ignition Facility at Lawrence Livermore National Lab, in California. It looks like this!
Haha! I have fooled you! That was is actually an image of a fusion reactor from the hit television program The Expanse, based on the series of novels of the same name! You have been deceived!
This is the actual chamber at the National Ignition Facility:
As you can see, they look quite similar! The Expanse uses a dramatized version, but is otherwise based on actual science! I highly recommend this series, it has some really excellent physics and a lot of heart.
The consensus in the broader fusion community is that ICF might be a bit of a dead end. The fusion pulses are extremely brief, and extremely inefficient. NIF hasn’t been able to achieve the output they hoped, and it’s unlikely that it will be economically viable.
Magnetic Confinement Fusion:
Magnetic confinement fusion uses powerful magnets to compress and heat a gas of hydrogen isotopes (deuterium and tritium) into a plasma, with the help of powerful radio waves and/or particle beams to add more energy. Once it gets hot enough, fusion reactions in the plasma release enough energy to keep itself going. That is called a “burning plasma,” which you can read more about in this post!
There are a few different types of magnetic confinement reactors, but the most common are stellarators (weird möbius ouroboros rings, read about ‘em in this post) and tokamaks (big donuts, and the type of reactor I work with. Read more under my #fusion tag).
This is a tokamak:
Or is it? No! It is not! Haha! You have once again been duped! That was an image of the arc reactor from Iron Man! A work of pure fiction. My clever ruse has bamboozled you!
This one is an actual tokamak:
This is ASDEX-Upgrade, a tokamak at the Max Planck Institute for Plasma Physics in Germany. These two pictures are taken from the same port on the outside of the ring looking inwards, during maintenance and plasma operations.
The Iron Man one looks pretty good, but the Expanse version is much more accurate, and in my opinion it also looks way cooler! The downside is that magnetic confinement fusion is where it’s at. We’re expecting to get a burning plasma going in SPARC by 2025.
And finally…
The bit that science fiction always gets wrong: Explosions
Fusion reactors can’t turn into nuclear bombs.
Fusion reactors can’t turn into nuclear bombs.
FUSION REACTORS CAN’T TURN INTO NUCLEAR BOMBS.
That’s just not possible, at all. Worrying about a fusion reactor turning into a bomb is like worrying that your chicken sandwich will turn into dynamite because they both contain carbon. The technology involved is entirely different in every way.
FUSION REACTORS CAN’T TURN INTO NUCLEAR BOMBS.
And there you have it! Fusion reactors are Cool and also NOT BOMBS WHY IS THIS ALWAYS A THING IN MOVIES
The trouble with finally getting your sleep schedule on track with the help of low-dose over-the-counter melatonin is that if your bottle runs out and you don’t get a new one for a few days, your precious, tenuous circadian rhythm is immediately fuckaroo’d straight to Tartarus.
Luckily my shipment of a 12-pack of canned espresso energy drinks + a 1 month supply of melatonin arrived on Saturday, so I can plausibly bootstrap my schedule back into 8 hours of sleep per night by caffeinating myself through a day of Monday meetings, under the radar.
Knock knock amygdala, it’s time for socially acceptable stimulants via Starbucks.