HumanForScale

Dragline Bucket from Bucyrus-Erie's 'Big Muskie' [1024x768]

Dragline Bucket from Bucyrus-Erie's 'Big Muskie' [1024x768]

Yes but how many bananas is this?

Amazing! It could be used to frame a small house.

7....maybe 8

Posted this in r/specializedtools and heard you guys might like this. Grabber TBM used to bore Gotthard tunnel through the Swiss Alps.

Posted this in r/specializedtools and heard you guys might like this. Grabber TBM used to bore Gotthard tunnel through the Swiss Alps.
https://m.youtube.com/watch?v=PHHrHL3qUiI

There’s a spiral of 50+ spinning blades that press on the rock with tonnes of force, chipping as they go. Video if you’d like:

So what part actually grinds? Is it just the slots at the very edge?

Boring machines are so interesting and yet somehow kinda terrifying

Amazing! The part in the picture doesn't look that powerful, but all the machinery behind it shows just how powerful it is.

Royal Hungarian Salt Mine of Désakna, c. 1940.

Royal Hungarian Salt Mine of Désakna, c. 1940.

Damn it, just looking at this makes me want to play Minecraft.

This is a Caterpillar 797b heavy hauler and I work next to these things in the Alberta oil sands. Each of the 8 tires cost $65,000 and when full, the unit weighs about 400 tonnes.(x-post, not OP, just so fucking cool!)

This is a Caterpillar 797b heavy hauler and I work next to these things in the Alberta oil sands. Each of the 8 tires cost $65,000 and when full, the unit weighs about 400 tonnes.(x-post, not OP, just so fucking cool!)

I've been around a few heavies like these and some other types when I was a kid. It's really hard to imagine the scale.

You can watch pavement and other solid surfaces dip down and spring back up when they drive by. As if they're driving on foam rubber or something.

It’s nice to finally see one without those mule balls hanging from under the trunk.

How do I get to drive this??

I have the engine from one of those in my '04 Dodge Ram with towing mirrors

Storage at Jack Frost Sugar Factory, NY, 1935.

Storage at Jack Frost Sugar Factory, NY, 1935.

I was really nervous because my eyes saw his shadow as missing bags and I couldn't figure out how it hadn't collapsed yet.

I wish I could stack bags of sugar that cleanly.

Men standing on ship rifle barrels used for a load test on Hammerhead Crane, 1933

Men standing on ship rifle barrels used for a load test on Hammerhead Crane, 1933

Anyone have pictures of that factory hanging off the back end of the crane?? That's super impressive!

It's not exceptionally tall, just big. Get a taller crane, build with small parts and mind the balance.

Construction photos: http://pugetsoundblogs.com/bremertonbeat/2014/10/14/the-hammerheads-not-dead-and-i-can-prove-it/

The question that came to my mind is: How do they built a crane like that, at that era? They used a bigger crane? If so, how do they built that bigger crane?

https://i.imgur.com/rTn7Y84.png

Installing the crankshaft for a Wartsila RT-flex96C-9 two-cycle diesel

Installing the crankshaft for a Wartsila RT-flex96C-9 two-cycle diesel

Googled it for the lazy. Container ship engine. This has 9, but available with up to 14 cylinders. The 14 cylinders is 44ft tall, 87ft long, and has 107,390hp.

The crankcase is almost as crazy as the crank. Is it one piece of aluminum? What aluminum producer can make a casting that big without internal defects? How the hell do you machine it? Do tolerances increase with the size of the motor, so this has like 15cm tolerances?

Wiki page says between 22 and 120rpm. 1810 liter displacement per cylinder with a stroke of over 8 feet, burns 6.5 ounces of fuel each cycle. The pistons weigh in at 5.5 tons and that crank weighs in at 300 tons.

The craziest number is the 5,608,310 ft lb of torque at 102 rpm.

Jesus that's massive

Sputnik, the world's first artificial satellite, 1957.

Sputnik, the world's first artificial satellite, 1957.

It’s smaller than I thought

Is this where ED-E gets his design from in FNV?

there’s a great song about sputnik by the band ‘public service broadcasting’ from their album ‘the race for space’, called ‘sputnik’, check it out https://open.spotify.com/track/4EhQrGzqi8k24qWIJuG5CH?si=0zKA82mpR9Sy_ZrN2og-MA

https://www.youtube.com/watch?v=r-bQEiklsK8

Try one of these subthreads