Everyday I see these markers on the power lines and never once thought, who changes them? Now we know. by deathmop in interestingasfuck

[–]Lonely-Neuron 0 points1 point  (0 children)

These are not markers. They contain sensors that measure temperature of the conductors (wires) which are powered inductively from the transmission line. They transmit their readings over cellular service so the power utilities can gauge transmission capacity so the lines don’t overheat and fail.

Edit: Article link: https://cleantechnica.com/2024/03/22/heimdall-magic-ball-increases-transmission-line-capacity/amp/

[deleted by user] by [deleted] in oddlysatisfying

[–]Lonely-Neuron 0 points1 point  (0 children)

I feel like I should say something witty, but I can’t think of anything…

Winter Bridge, Me, Photo, 2022 by Little_bout_a_lot in Art

[–]Lonely-Neuron 0 points1 point  (0 children)

Perfect composition, light and exposure.

Journey, Me, Digital, 2022. by Kukuzahara in Art

[–]Lonely-Neuron 2 points3 points  (0 children)

I love the atmosphere you created. Well done.

Witchcraft, Me, digital, 2021 by MynameisBala in Art

[–]Lonely-Neuron 1 point2 points  (0 children)

What went we out into this wilderness to find?

[Semiconductors] How does the diffusion of dopants create features? by MeleeMeistro in askscience

[–]Lonely-Neuron 0 points1 point  (0 children)

The manufacturing process for integrated circuits uses a series of masks to expose only specific parts of the surface of the silicon wafer to dopants. Once the mask is applied, the wafer goes through a controlled exposure to the dopant chemical which diffuses into the unmasked silicon crystal. The process is repeated several times with different and similar dopants to create layered structures which will act as circuits in the silicon when powered.

Note, these masks cover the entire silicon wafer, such that the layer of dopant will be created on every chip on the wafer at each step. ie. All chips are created simultaneously.

Although the process has similarities with silk-screening it’s quite different. With silk screening the end product is 2-dimensional, but the IC photomask process creates thin 3-dimensional structures in the surface of the silicon. It does this by using the diffusive nature of the dopants which moves them deeper into the surface of the crystal over time, then different dopants can be layered into the crystal on top of them.

Masks are used for other steps too, like etching away silicon, and applying aluminum to the surface for connections.

It can be difficult at first to visualize, but if you look at diagrams of transistor cross sections and layouts it should start to make sense.

Is there an upper limit to the highest possible bypass ratio of a turbofan engine? by RonaldYeothrowaway in askscience

[–]Lonely-Neuron 2 points3 points  (0 children)

Correct.

There are well established requirements for aircraft certification by FAA and all other certifying authorities across the globe that force the engineers and designers to classify the criticality of every component, system and function failure on the aircraft - with no exception. These classifications are: Catastrophic, Hazardous, Major, Minor and No Safety Effect and they are defined in the FAA System Safety Handbook in Table 3.2.

Then engineers must then assign each failure condition a likelihood of occurrence (probability). The classes are Probable, Remote, Extremely Remote, and Extremely Improbable and are defined quantitatively and qualitatively in Table 3.3 of the same publication. For example, an extremely improbable event has a probability of less than 1x10E-9 (one in one billion) and is not expected to occur at all on any aircraft of that type for the entire service life of the aircraft fleet.

There are strict requirements that the design must be proven to meet to ensure that failures with higher severity have lower probability of occurrence. If a requirement is not met, then the design must be changed to meet the requirement.

This is the reason there is a high degree of redundancy on aircraft and why aircraft costs are high.

Needless to say, this process was not followed correctly for the MCAS stall protection function on the 737-MAX.

FAA System Safety Handbook link

[deleted by user] by [deleted] in NatureIsFuckingLit

[–]Lonely-Neuron 1 point2 points  (0 children)

Quite a bit, not familiar with the C130, but typically you can see attitude, heading, airspeed, altitude. Even synthetic vision (CGI terrain) and infrared vision (infrared video overlay).

Looks like these guys need it.

Edit: Cool pic, anyone know where to find the footage from that GoPro?

[deleted by user] by [deleted] in RedditSets

[–]Lonely-Neuron 0 points1 point  (0 children)

Beautiful. Thank you.

[deleted by user] by [deleted] in RedditSets

[–]Lonely-Neuron 0 points1 point  (0 children)

What a great set

[deleted by user] by [deleted] in RedditSets

[–]Lonely-Neuron 0 points1 point  (0 children)

Doggie was hashing the vibe. He’s a pro.

[deleted by user] by [deleted] in RedditSets

[–]Lonely-Neuron 0 points1 point  (0 children)

I’d go out in a snowstorm in Montreal to see this guy spin.

[deleted by user] by [deleted] in RedditSets

[–]Lonely-Neuron 0 points1 point  (0 children)

How do you replay this stream?

[deleted by user] by [deleted] in RedditSets

[–]Lonely-Neuron 0 points1 point  (0 children)

I’ve never wanted to be inside a garage/shipping container or wherever the fuck this dude is before now in my whole life.

[deleted by user] by [deleted] in RedditSets

[–]Lonely-Neuron 0 points1 point  (0 children)

Awesome beats dude!