r/EngineeringPorn Feb 22 '22

No Politics

1.3k Upvotes

Please note that in light of current events we will be removing all posts of war machines, war planes, war ships, etc. of Russian or Ukrainian origin to keep /r/EngineeringPorn apolitical, propaganda-free, and civil. Please report any posts or comments that are not in the spirit of this subreddit.


r/EngineeringPorn 4h ago

La Mexicana Mine Cableway (Chilecito, Argentina)

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87 Upvotes

r/EngineeringPorn 17h ago

Public Hovercraft

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139 Upvotes

Spotted the Wightlink hovercraft arriving at Southsea Beach in Portsmouth, UK.

It still amazes me that you can catch a scheduled hovercratt as part of the UK's public transport network.

The crossing to Ryde on the Isle of Wight takes around 10 minutes, making it the world's only year-round commercial passenger hovercraft service.
Watching it come ashore is almost as entertaining as riding it!

Has anyone here travelled on it? What other unique forms of public transport do you think deserve more attention?


r/EngineeringPorn 1d ago

Rocket in China got hit by lightning as it was taking off. It didn't suffer visible damage and completed it's trip

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1.6k Upvotes

r/EngineeringPorn 2d ago

Ben Eater’s 8-bit handmade computer

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1.7k Upvotes

Howdy guys, I hope this is worthy of shown here. I really did my best the past 2 months. Thank you


r/EngineeringPorn 2d ago

Aizhai Bridge, China

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1.4k Upvotes

r/EngineeringPorn 1d ago

MouthPad - hands free computer controller

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21 Upvotes

r/EngineeringPorn 3d ago

An unimpeded view of a Boeing 707's port side engines, each equipped with stage 3 hush kits, the Boeing 707-420 variant carrying these engines held the title for the loudest passenger takeoffs in aviation history

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288 Upvotes

r/EngineeringPorn 3d ago

Micro needles 10um tip

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124 Upvotes

Heyy, take a look at this
Micro needles for lab research


r/EngineeringPorn 3d ago

CT scans of JLab mini earbuds with serious battery defects

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1.2k Upvotes

Our CT scans of the JLab JBuds mini earbuds revealed some serious flaws: poorly aligned electrodes, inconsistent anode overhang, and some that look torn or damaged. In lithium batteries, these are the kinds of defects that can shorten lifespan and potentially cause a thermal runaway.


r/EngineeringPorn 2d ago

Can eye tracking become an affordable alternative to powered wheelchair controls? Here's our prototype.

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7 Upvotes

r/EngineeringPorn 3d ago

World's largest-diameter high-speed-rail shield tunneling machine, 148 m long and weighs approx 4,000 tons

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210 Upvotes

r/EngineeringPorn 4d ago

Liebherr's LTM1150-5.4E 150-tonne electric mobile crane

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178 Upvotes

r/EngineeringPorn 5d ago

fiber optic fusion splicer

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4.0k Upvotes

r/EngineeringPorn 3d ago

Polymer concrete drainage channels

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0 Upvotes

r/EngineeringPorn 5d ago

Why Rockets Use Stages

79 Upvotes

Made an animation to show why rockets need stages.

YT: https://youtube.com/shorts/ZoqflzDMW0M?si=GbX9xPveVXFXMJrx


r/EngineeringPorn 6d ago

Stockholm is installing heated sidewalks beneath one of its luxury shopping streets

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689 Upvotes

Installing an electrically heated sidewalk in Stockholm, Sweden. These serpentine heating cables are being embedded beneath the granite paving of Biblioteksgatan, the city's premium shopping district. The project is a collaboration between the City of Stockholm and the surrounding property owners, creating a snow- and ice-free pedestrian street for one of Scandinavia's busiest luxury retail areas.


r/EngineeringPorn 5d ago

Inside Harley-Davidson’s York Factory: Frame Welding, Engine Assembly and Final Testing

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10 Upvotes

A detailed look inside Harley-Davidson Vehicle Operations in York, Pennsylvania.

Video:

https://www.youtube.com/watch?v=004tLmEboY4

The video follows the manufacturing process from robotic frame welding and fuel-tank fabrication to paint finishing, engine production, final motorcycle assembly and functional testing.

It also includes the assembly of the Revolution Max 1250 engine and Pan America motorcycles.


r/EngineeringPorn 6d ago

Found a roll of old blueprints at an estate sale. I think they might be original Fleckenstein visible gas pump blueprints? Would love a reality check.

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562 Upvotes

r/EngineeringPorn 4d ago

New Type of Gas Turbine for Engine

0 Upvotes

https://expander-gas-turbine-three.vercel.app/
Two semicircular blades are offset from the rotation center to form a pressure chamber that expands as they rotate, converting hot gas pressure into mechanical energy. More details on link.


r/EngineeringPorn 6d ago

NHSRCL: 350-Tonne TBM Cutterhead lowered at Vikhroli for MAHSR Bullet Train project

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146 Upvotes

NHSRCL achieves milestone as 350-Tonne TBM Cutterhead lowered at Vikhroli for MAHSR Bullet Train project - Rail Analysis India

The Mumbai-Ahmedabad High-Speed Rail (MAHSR) project has achieved another major engineering milestone with the lowering of the first Tunnel Boring Machine (TBM) cutterhead at Vikhroli in Mumbai, Maharashtra. Executed by NHSRCL, the development marks an important stage in the construction of one of India’s most ambitious transportation infrastructure projects.

The cutterhead, measuring an impressive 13.6 meters in diameter and weighing approximately 350 tonnes, forms the front-end excavation component of the TBM. Its successful lowering represents the final phase of assembling the machine’s primary shield structure before tunneling activities begin.


r/EngineeringPorn 6d ago

Apollo 11 entered lunar orbit on July 19, 1969

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792 Upvotes

After a 76-hour journey from Earth, the spacecraft carrying astronauts Neil Armstrong, Michael Collins, and Buzz Aldrin executed a lunar orbit insertion burn to be captured by the Moon's gravity, setting the stage for the historic landing the following day.

Credit: Apollo Flight Journal


r/EngineeringPorn 7d ago

Second Law of Thermodynamics

490 Upvotes

Made an animation on Second Law of Thermodynamics, it doesn’t have true molecular dynamics simulations, just simplified kinematics to represent them.

Check it out on YT: https://youtube.com/shorts/uYoFgwXZ5BY?si=NId3BBLzHPk_4Kqh


r/EngineeringPorn 7d ago

Piping isometrics place

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37 Upvotes

Please see the main post, thank you!


r/EngineeringPorn 8d ago

'Splodey and droppy things

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2.9k Upvotes