Engineering your microwave's Popcorn button (img.wonderhowto.com)
A friend recently pointed out that, despite most microwave ovens having a Popcorn function, most bags of popcorn specifically say NOT to use that function. It got me wondering how the Popcorn button works (or doesn’t work). Apparently there are several different approaches in common use....
Roof sections of the Sydney Opera House (sh.itjust.works)
The original design of the Sydney opera house featured roof sections with unique curves. This caused two major problems: (1) the structural analysis was very difficult, and (2) it made construction more expensive since they could not reuse construction details among the roof sections. Eventually the engineers realized they could...
Front view of Bertha, once the world's largest tunnel boring machine (www.thestructuralengineer.info)
Bertha was custom built to dig the State Route 99 tunnel under Seattle. It dug under the city (off and on) from December 2013 to April 2017....
Francis turbine runner in Grand Coulee Dam (sh.itjust.works)
A Francis turbine runner being installed at Grand Coulee Dam, Washington state, USA. The damn has 27 Francis turbines of various sizes, plus 6 additional pump-generators, for a combined electrical generating capacity of 6,809 megawatts....
The sound of a dialup modem, pictured (sh.itjust.works)
Source: https://www.windytan.com/2012/11/the-sound-of-dialup-pictured.html?m=1
How GPS works (ciechanow.ski)
As the inaugural post, here's a great introduction to how GPS works. It starts with the basic physics and moves to implementation details, including some of the signal processing.
Need some advice on creating a waterproof container that allows for a sliding stainless steel rod
Hello lemgineers!...
Learning mechanical engineering | mechanics, study, fastest, most effective (lemmings.world)
Is there any mechanical engineers? What you would wish to know when you were starting learning? What skills and topics you consider the most useful in mechanical engineering?...
Debate heats up over how to dispose of Indian Point radioactive water (gothamist.com)
cross-posted from: lemmy.crimedad.work/post/77168...
Experience Jet Engine Working in Virtual Environment | VR for Engineering Education (www.youtube.com)
World's First Screw-bike (youtu.be)
Animation: The World's Biggest Wind Turbines (www.visualcapitalist.com)
An animation of the world’s largest wind turbines...
Wind Turbines: the Bigger, the Better (www.energy.gov)
A graphic comparing the size of various wind turbines...
Great channel to learn about AC machines (youtube.com)
I just started getting interested in synchronous machines, and this channel really did it for me. Great for anyone studying engineering, or anyone interested with a high school/first year university physics background.
How the Lockheed SR-71 Blackbird Works (www.youtube.com)
A bridge too far? Messina Strait project could finally join Sicily to the mainland (www.nature.com)
NTSB determined the probable cause for the Fern Hollow Bridge collapse (www.ntsb.gov)
We determined that the probable cause of the collapse of the Fern Hollow Bridge in Pittsburgh, Pennsylvania, was the failure of the transverse tie plate on the southwest leg of the bridge, a fracture-critical member (nonredundant steel tension member), due to corrosion and section loss resulting from the City of...
My five year old asked me what calculus is. (pixelfed.crimedad.work)
cross-posted from: lemmy.crimedad.work/post/56030...
Does anyone know a way to convert an LED car headlight kit to have variable control?
I’m thinking of just adding a potentiometer to a car headlight kit, this serves two purposes, 1. Allows me to have bright ass lights in place of my shitty Prius lights on long country roads while letting me turn down the brightness to not blind people in front of me. And 2: I think this would be a fun project to learn a little...
A 28-ton, 1.2 MW tidal kite is now exporting power to the grid (newatlas.com)
cross-posted from: lemmy.world/post/11869824...
Prehung residential door systems undergoing testing for hurricane-zone wind loads (i.imgur.com)
Under structural-only DP loading, a certain amount of deflection is allowed, and a certain amount of post-loading set displacement (permanent deformation) is allowed. Under the DP (design pressure) system, DP ratings are defined differently for structural, water leakage, and air leakage tests. This is a structural only test, so...
An electric car completed the world's first-ever drive from the North to the South Pole (kinda) (www.engadget.com)
Earlier today, Scottish adventurers Chris and Julie Ramsey were finally able to announce their completion of the nine-month, 17,000-mile “Pole To Pole EV” expedition, the world’s first drive from the 1823 Magnetic North Pole to South Pole....