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Drusas, in Belgian refugees leaving Brussels with a dog pulling a cart, WW1, 1914

That poor dog is so not built for that task.

TwoBeeSan, in Messenger dog with a spool for laying out telephone cable, WW1, 1917

Alexander Graham Goodboy

LongbottomLeaf, in Punt gun for mass-hunting waterfowl in a, uh, punt, Britain, 1900-1912
Lophostemon, in US anti-armor grenade packed inside a foam football, 1973

Wrapping the explosive around the inside like a thicker skin would distribute the weight.

GMkOz2MkLbs2MkPain,

It would but harder to make a shaped directional armor penetrating charge that way.

setsneedtofeed, (edited )
@setsneedtofeed@lemmy.world avatar

Unfortunately, not compatible with a shaped charge.

Squashhead, maybe, but squashheads need a lot of rotation to work well and I don’t think even a two time touchdown in one game high school quarterback has enough of a throwing arm for them.

randomivysaur, in British engineer J. A. Purves in his 'Dynasphere' vehicle, 1932

round.

LongbottomLeaf, in Two men posing with a 'Punt Gun', a kind of shotgun for hunting waterfowl in large quantities, 1923

Muzzle loader? And is that a trigger with no guard?

gmtom, in Demonstration of the Communist Party of Great Britain, 1976

Well there is 1 thing Mao got right

PugJesus,
@PugJesus@kbin.social avatar

Landlords?

gmtom,

Landlords.

niktemadur, in Demonstration of the Communist Party of Great Britain, 1976

How many of these weekend warrior party animals would have survived the aftermath of The Great Sparrow Campaign and then The Cultural Revolution, one wonders. Or how their perception of things would be changed if they had lived through anything like that double sucker punch.

PhlubbaDubba, in British engineer J. A. Purves in his 'Dynasphere' vehicle, 1932

Ok where do these airless tires keep going?

I feel like I’ve seen the concept work enough times on demonstrations that I’m justified wondering why I still gotta drag my butt to Mavis every few months

PugJesus,
@PugJesus@kbin.social avatar

Might be terrible wear and tear on the roads.

Patches,

Of all the reasons to not have airless tires. This is the least likely answer.

If it were true - we wouldn’t allow regular people to own Chevy 750 15,000 trucks to drive to their office jobs.

PhlubbaDubba,

I mean tbch we probably shouldn’t allow those big stinking trucks for people that don’t have farm labor on the docket

NoSpiritAnimal,
@NoSpiritAnimal@lemmy.world avatar

Imagine all the conveniences of a pressurized tire, but with terrible balance and constantly filling with dirt and debris. All those nooks and crannies, like an english muffin crossed with an out of balance washing machine.

They’re great for off-road and heavy duty work applications.

They suck absolute ass on passenger cars.

PhlubbaDubba,

Couldn’t you resolve that by just covering the airless part? Like just because we don’t have to inflate them anymore doesn’t mean we need to constantly be seeing how not-inflated it is

IdleSheep, (edited )
@IdleSheep@lemmy.blahaj.zone avatar

Wouldn’t that introduce a pretty big layer that can wear down? Any sort of fully opaque cover would have to be flexible to adapt to the road and I can’t think of a material that isn’t going to wear down from that, and at that point you’re just back to inflated tires with extra steps, so you might as well use regular inflated tires.

PhlubbaDubba,

Well no because you can just get that part replaced as often as you replace your tires normally

Sanyanov,

Just covering hard base with some material will make it wear down much faster due to the way pressures are distibuted.

Pressurized tires are much better in this case, allowing for a better distribution of mechanical stress and less wear and tear.

octoperson,

Your original intent was to not need to replace tyres. If you still need to replace other parts just as often, you haven’t really improved on the problem.

PhlubbaDubba,

My intent was to not need to get them inflated every few months

NoSpiritAnimal,
@NoSpiritAnimal@lemmy.world avatar

Again it comes back to weight and balance.

You’ve taken a tire that was previously filled with very light air and filled it with rubber or plastic lattice.

So not only will the tire ride worse and wear faster due to weight but it will be more expensive to replace more often.

You will always have to inflate your tires every few months, because even if the amount of air inside the tire never changes, the outside air temperature will.

10 degrees Fahrenheit for every 1 PSI in the tire is the rule of thumb.

DemBoSain, in British engineer J. A. Purves in his 'Dynasphere' vehicle, 1932
@DemBoSain@midwest.social avatar

That’s It?

Cosmicomical, in The ISOLATOR, invention from 1925

I want one, like now

ares35, in The Monowheel, Italy, 1933
@ares35@kbin.social avatar

"Nef's got a Coildrive patrolling the Vallis. Ambush it and I'll rip the datamass.."

fratermus, in The ISOLATOR, invention from 1925
@fratermus@lemmy.sdf.org avatar

I am reminded of those fuzzy-head drinking bird things.

PowerGloveSoBad, in Jetpack test flight, Virginia, USA, 1969

Spent my whole life in VA – can confirm this is us

aluminium, in Jetpack test flight, Virginia, USA, 1969

Bro just entered ROCKETMAN

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