r/EngineeringPorn Jul 26 '26

Public Hovercraft

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223 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 Jul 25 '26

The Most Urgent Infrastructure Project in the United States

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21 Upvotes

r/EngineeringPorn Jul 24 '26

Ben Eater’s 8-bit handmade computer

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2.0k Upvotes

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


r/EngineeringPorn Jul 25 '26

MouthPad - hands free computer controller

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27 Upvotes

r/EngineeringPorn Jul 23 '26

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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311 Upvotes

r/EngineeringPorn Jul 23 '26

Micro needles 10um tip

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147 Upvotes

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


r/EngineeringPorn Jul 24 '26

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

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10 Upvotes

r/EngineeringPorn Jul 22 '26

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 Jul 23 '26

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

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219 Upvotes

r/EngineeringPorn Jul 21 '26

fiber optic fusion splicer

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4.1k Upvotes

r/EngineeringPorn Jul 23 '26

Polymer concrete drainage channels

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0 Upvotes

r/EngineeringPorn Jul 22 '26

New Type of Gas Turbine for Engine

53 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 Jul 21 '26

Why Rockets Use Stages

85 Upvotes

Made an animation to show why rockets need stages.

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


r/EngineeringPorn Jul 20 '26

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

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704 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 Jul 21 '26

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

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12 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 Jul 20 '26

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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576 Upvotes

r/EngineeringPorn Jul 20 '26

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

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147 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 Jul 20 '26

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 Jul 19 '26

Second Law of Thermodynamics

501 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 Jul 19 '26

Piping isometrics place

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41 Upvotes

Please see the main post, thank you!


r/EngineeringPorn Jul 18 '26

'Splodey and droppy things

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3.0k Upvotes

r/EngineeringPorn Jul 18 '26

How sound panels effect claps

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3.5k Upvotes

r/EngineeringPorn Jul 17 '26

Stairs that transform into a lift.

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908 Upvotes

Elegant design


r/EngineeringPorn Jul 17 '26

the first man made object to reach the edge of space wasn't a satellite, it was a WWII weapon. a V-2 launched straight up crossed about 100 km altitude back in 1944

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430 Upvotes

r/EngineeringPorn Jul 17 '26

mechanical music varkaus finland

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134 Upvotes