HaphazardFinesse

joined 2 years ago
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[–] HaphazardFinesse 8 points 2 years ago

I was a bit surprised to hear "victims broke their necks instantly," so I was hoping for someone else to do some math to back it up. Sigh...

Assuming ≈1000 ft/lbs to break a neck, and a 220 lb 6'10" person (so we can exclude the head to get ≈ 200 lb 6'), if it were possible for them to keep their body completely rigid, simply laying them horizontal, only supported by their head in a fixed orientation, would produce ≈ 600 ft/lbs (CoM 3' from the moment) on the neck. Which is actually a surprising testament to the strength of the human neck.

The actual math for determining the torque on the neck from a worst-case scenario of a person jumping off a moving boat and hitting the water head-first with a stiff vertical posture is a bit above my pay grade. You'd have to calculate the resistance of the water over time as the head makes contact and starts deflecting, vs how much of that force gets transferred to the body and starts to rotate it towards the water.

But just conceptually, doesn't make a ton of sense to me, as someone with a fair amount of experience with hitting the water at high speed; I used to barefoot water ski. Sucks hitting the water that fast, but the worst injury I've sustained is a ruptured ear drum.

[–] HaphazardFinesse 3 points 2 years ago

IIRC, the "Hot" thing is a known bug in Lemmy that can be temporarily fixed by restarting the instance. Also IIRC, the admin restarted sh.itjust.works like a week ago, and "Hot" was working immediately after that, for at least a few days.

I'm still using mostly "Top 6 Hours" until the sorting algo for "Hot" and "Active" is improved.

[–] HaphazardFinesse 1 points 2 years ago

I've certainly seen some vans that were mostly tapestries covering the interiors, don't think it would be inherently disastrous. Here's my thoughts:

Pros of textile coverings:

  • Cheap
  • Easy to install
  • Few (if any) tools required
  • Lightweight
  • Could easily be removed to clean/replace

Cons of textile coverings:

  • Will absorb moisture and odors (not to be underestimated how smelly it can get in a van lol)
  • Fire hazard (somewhat more so than wood)
  • Has to be removed to be cleaned properly (tapestries), or hard to clean in-place (glued fabric)
  • Can easily be damaged
  • Doesn't provide opportunity to mount anything else to walls

Pros of wood walls:

  • Durable, can be cleaned easily
  • "Cleaner" looking
  • If properly sealed, resistant to moisture/odor
  • Can mount stuff (hangers, nets, outlets, switches) directly to wall

Cons of wood walls:

  • Heavier (though if you use 1/8" plywood like I did, relatively inconsequential compared to the weight of other stuff, like the water tanks, batteries, cabinets...my fridge alone, while loaded, weighs almost as much as all of my walls)
  • More expensive (I had the misfortune of having to buy all my wood at the peak of pandemic wood price inflation lol)
  • Requires tools and some woodworking skills to install
  • A lot of work to install furring strips, cut/sand/stain/seal panels
  • Blocks access behind walls

As far as why everyone seems to use wood...well it's one of three materials most commonly used for walls, with the other two being drywall and plaster. Which both make pretty poor choices for van interior walls; They're heavy, brittle, inflexible, and hard to cut into intricate shapes. Plywood (especially the thin stuff) is easy to contour to the frame of the van, as is shiplap/tongue-and-groove. And it stands up to the abuse of off-road driving (ask me how I know).

But yeah, the VanLife community is certainly susceptible to the whole "I'm going to copy that one guy because I don't know what I'm doing" thing. Go look at the subrexxit for a few hundred examples of people not knowing how Reflectix works haha

[–] HaphazardFinesse 1 points 2 years ago

...It depends lol. Massachusetts state forests, for example, apparently ban any open flame when there's a fire restriction, I recall them even specifying no camp stoves. New Hampshire, in my experience, doesn't.

[–] HaphazardFinesse 1 points 2 years ago

I watched a lot of Trent & Allie and Eamon & Bec before I committed to full-timing a few years ago, but it seems both couples have moved on to tiny homes since then. For the record, I found them by searching YouTube for "Things I hate about van life," "Things I hate about my van build," or "Things I wish I knew before doing van life." Searching for the negative stuff seems to get some of the more genuine(ish) vloggers. Also I highly recommend watching a ton of those types of videos if you're considering vanlife yourself!

But yeah, I think that looking for "non-glam" vloggers who commit to regular schedules and good production quality really limits your options lol. "Regular" people don't usually invest thousands of dollars in recording equipment, hundreds of hours into learning how to self-produce quality content, and then however many hours per week dedicated to ongoing production.

A lot of the stuff I liked was when these regular vloggers would interview other vandwellers they met; They always seemed more down-to-earth. And you get the production quality of the vloggers!

[–] HaphazardFinesse 11 points 2 years ago (4 children)

Then I start over-thinking whether or not I'm over-thinking it. Then I spend 5 minutes lamenting my existence, only to forget what I was thinking about in the first place.

[–] HaphazardFinesse 1 points 2 years ago

I doubt using carbon fiber over traditional fiberglass gave much benefit at all; Without epoxy, it's just as flexible as any other fabric. Like you said, carbon fiber's advantage is in its tensile strength, but the vast majority of force was a compression load. So the epoxy was doing all of the work. The only time carbon fiber's tensile strength would have helped is after the cylinder started buckling, it would have resisted tearing itself apart. But that wouldn't have stopped it from imploding.

Maybe it was a bit lighter than fiberglass, but with the amount of displacement, they probably needed to add several thousand pounds of weights anyways.

[–] HaphazardFinesse 2 points 2 years ago

In the Star Trek universe, if you're intent on "glassing" a planet, it's in one of two scenarios:

  1. The planet inhabitants can't fight off a single star ship, in which case you could just park in orbit and bombard to your heart's content, with the option of either precision strikes or complete annihilation, without expending anything other than the energy it takes to power the ship.
  2. The inhabitants can fight off a star ship, in which case they likely have the technology to detect such a weapon at sufficient range to intercept/destroy/redirect it, or planetary shielding powerful enough to stop it.

In the latter case, you could put the effort into adding a cloaking device to the weapon to get around that. But in that case, why not just use a regular cloaked ship to delivery some other payload? There are tons of examples in TNG of narrowly-averted planet-killing disasters only prevented by careful engineering. Probably way easier to actually cause the disaster. Examples include igniting the atmosphere, causing geographic instability/earthquakes/volcanic reactions, exploding the system's star, crashing a natural moon into the planet, unleashing a biological weapon...

[–] HaphazardFinesse 1 points 2 years ago

Also just found out it got a remaster in 2018...guess what I'm doing this week lol

[–] HaphazardFinesse 1 points 2 years ago* (last edited 2 years ago) (1 children)

Battlezone 2: Combat Commander!

Really wish this genre had taken off. Apparently not enough people enjoy FPS and RTS at the same time.

But c'mon, a game where you can eject from your own tank, use your rifle to headshot the pilot of an enemy tank, then commandeer their vessel? In 1999?!?

[–] HaphazardFinesse 1 points 2 years ago

Pretty sure it's a rule set by individual subs. Some even allow GIFs in the comments!

[–] HaphazardFinesse 2 points 2 years ago

Oh neat! I started looking at propane tanks, then switched to air compressor receivers when I found ones rated for 300 psi, knowing propane is generally 100-200 psi. But now I'm finding some propane tanks rated for 600+ psi...sooooo...guess it depends?

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