Engineering
2644 topics in this forum
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Could the advent of long rage ramjet powered artillery shells, Laser point defense, nuclear power, and light weight armor as used in aircraft carriers be used to bring back the battleship? New technologies would seem to indicate that a powerful battleship platform could again be an important part of the Navy, the idea of either redeploying old battleships and or redesigning the old battleships has been around a long time but vulnerability to air power and missiles has always stopped the idea from fruition. New technologies could turn that around. This development might be part of this. https://en.wikipedia.org/wiki/Trophy_(countermeasure)
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- 88 replies
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- 4 followers
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Hello, I have a question regarding the manufacturing process of electronic components in the case of the silicon deposition and corrosion process. My biggest doubt is the behavior of the plasma interacting in the reactor, I don't know if it's correct I would like someone to help me. What I understood from the subject: If you look at the image, it shows a capacitor (in the simplified case, a PECVD or RIE plasma reactor) where the particles descend from the plate and then it will collide with the particles on the bottom plate, in this case it is in the middle where the plasma wants to pass. In practice we have three directions (vectors) x, y and z, the magnetic effect …
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- 1 reply
- 1.1k views
- 1 follower
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Hello, I'm new to this forum and hope that I'm posting in the correct sub-forum. My apologies if not. I was wondering if anyone has ever heard of anyone making a "perpetual" clock powered by batteries made with potassium chloride? In the past I found a website from someone who made and experimented with this type of clock. They had a working model of it. The clock wasn't really perpetual, but apparently was expected to run for a lifetime (or close to it). If I remember correctly the batteries were made in cardboard tubes and arranged around the clock. I also think that there might have been a glass dome covering the clock. I can't remember what the cloc…
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- 3 replies
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Latest InFlow Generation - State of the Art Novel InFlow Tech: ·1-Gearturbine Rotary Turbo Reaction Turbine, ·2-Imploturbocompressor 1 Compression Step Impulse Turbine *Wordpress Blog State of the Art Novel InFlow Gearturbine Imploturbocompressor: http://stateoftheartnovelinflowtech.blogspot.com https://padlet.com/gearturbine/un2slbar3s9 *1-GEARTURBINE PROJECT, Reaction-Turbine System Type, Rotary-Turbo-InFlow Tech, Atypical InFlow Thermodynamic, Technology Proposal Submission, Novel Fueled Motor Engine Type: *1-GEARTURBINE BEHANCE Images Gallery Portafolio: https://www.behance.net/gallery/21019191/Novel-Rotary-Tu…
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With the Russian gas squeeze coming this winter, Berlin turns to a giant thermos... https://apnews.com/article/russia-ukraine-technology-germany-berlin-trending-news-176229c8932869f45e553e615a6e9953 ...of coffee hot water. It will store off-peak wind and solar electricity production as heated water for use in home heating. Sometimes you have an abundance of electricity in the grids that you cannot use anymore, and then you need to turn off the wind turbines,” said Wielgoss. “Where we are standing we can take in this electricity.” The 50-million-euro ($52 million) facility will have a thermal capacity of 200 Megawatts — enough to meet much of Berlin’…
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I read that the most (however I'm not sure) efficient steam coal-fired train was 27% efficient in the past century 🙂 link: steam train thermal efficiency. (browse pages up to the Third Generation Steam(TGS)). So...I wonder if it's possible today to build biomass-fueled steam engines for bulky vehicles(agricultural etc...). Energy content of 1 liter of diesel is equivalent to 2.5 kg of wheat straw pellet(An example). BUT 1 liter of diesel costs around 1.5 u.s. dollars while 2.5 kg of wheat straw pellet is around 0.25 u.s. dollars. Problems can be: 1-wheat straw availability 2-power 3-volume I'll try to give some answers to t…
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- 11 replies
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I have seen pretty recent studies about how scientists are using a liquid metal alloy to make co2 solid. I was thinking about applying this concept to cars. The idea is that the exhaust pipes direct the exhaust into a wide container containing the liquid metal, and the co2 reacts with the metal to form carbon flakes that adhere to the sides of the container. This allows the process to keep on going for a long time, which allows for drives that actually last for more than 10 seconds. One thing that might be a problem is all the other gasses, such as nitrogen oxide, that are part of the exhaust, which won't be turned into solid by the liquid metal. Another problem might be …
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- 6 replies
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Possible nighttime counterpart to solar PV power generation. https://pubs.acs.org/doi/10.1021/acsphotonics.2c00223# Looks like it's got a ways to go in term of milliwatts per sq meter, but a cool idea (npi). Maybe would work better in deserts where the surface is losing a lot of heat to space.
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- 6 replies
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Hello All, I am working on AI project and I want to know the source code of Next Word Prediction Project. Basically, It’s never easy to write rapidly and without making spelling mistakes. It is not difficult to type correctly and quickly while using a keyboard on a desktop computer, but typing on small devices such as mobile phones is a different story, and it can be frustrating for many of us. With the next word prediction project, you can improve your experience of typing on small devices only by predicting the next word in a sentence fragment and I have taken this reference from a commercial website. Can anyone provide me the source code of the Next Word Prediction Pr…
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If I were to pass a cylindrical magnet through a solenoid, what would the induced current and voltage look like if I were to connect the two wires forming the solenoid. Also, how would I calculate this based on the magnetics magnetic field strength, volume and mass of the magnet, number of windings of the solenoid, length of the solenoid, and area of the solenoid and velocity that the bar magnet is traveling through? Creating a single relational equation.
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So I was looking at the rainfall rates associated with Hurricane Agatha, and I thought "if only we could move that water just a few thousand kilometres further northwest..." So what's stopping society from investing in an artificial mountain range, anchored to any common location shared by multiple hurricane tracks, to force the humidity from the hurricane to condense, with a crevice partway up the mountain to capture the rainwater and relocate it to wherever it is needed? Not that the water would necessarily be clean enough for human consumption, but being desalinized, would it not at least be useful for farming? Would it just be a one-time investment that wo…
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- 5 replies
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Hello How to take bombadier moneymark Facebook money
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What if when the first cars were invented, there was a collision between two cars and both gas tanks exploded and killed the people driving the cars? Was that an indicator that the internal combustion engine was unsafe and could never be useful in cars? No. Something like that may be going on with nuclear power. Just because the early nuclear reactors were not safe enough, does not mean that they will never be safe. Here are some ideas for safe nuclear reactors, thorium molten salt, and the Natrium reactor. Comments to this video: "Advantages of thorium: Much safer than uranium-no pressure vessel, no fuel rods to melt down. Much simpler reactor.…
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Is this a possible source of fresh water? In theory this is the way it works. There is a steady migration of unskilled labor thru the US southern border. Let's put them to work. That is the region where this idea can work. You need coastal deserts and lots of unskilled labor. There are coastal deserts on the Pacific side and the Gulf side of the US border, both in the USA and in Mexico. The idea is to build hundreds, then thousands, of shallow concrete ponds. The ponds are covered with glass made from abundant desert sand. Huge pipes deliver seawater from the Pacific and Gulf of Mexico into these coastal desert concrete ponds. Unskilled laborers mix and pour …
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- 10 replies
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- 2 followers
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In 100 years from now, what features would you expect a house to have? POWER: By 2122 you would think that all roofing material would be very durable and covered with solar cells. The entire roof will generate power to be stored in banks of super batteries. Only a fraction of the power generated on the roof will be needed by the household, most will go to community batteries for local public use. WATER: Where I live in dry southern Calif, fresh water will become an issue. I was thinking of gutters to collect all rainwater. But simpler than that, and a great expansion of surface area for rain to be captured would be to have about an 8-foot concrete margin…
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"Given the energy intensive nature of desalination, with associated economic and environmental costs, desalination is generally considered a last resort after water conservation. But this is changing as prices continue to fall." Desalination - Wikipedia Rain water harvesting could be a major source of fresh water. If enough houses and buildings were designed with gutters that collect all the rain that lands on a roof, and all that runs off pavement, that water could be saved in big reservoirs attached to any house or building. That water can be used for growing plants and all households needs. Watering lawns should be discouraged but rather use drought-resistant …
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I don't know whether or not this anecdote is real, but it's the reason my attention was brought to the concept of "demolishing" condemned buildings and how wasteful it sounds, to say nothing of the perverse incentives to recruit demolition employees who might be biased by their destructive instincts against the possibility they're really being used as accomplices in vandalism. (After "The Troubles," a church group offering teenagers an opportunity to demolish a building sounds sketchy as all hell.) A: Obvious first question is; why aren't they just repurposed? If a building is no longer structurally stable enough for its former purpose, why not strip it of its…
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Is it possible to predict the properties of metal alloys? I think many of the first alloys like iron and carbon equal steel were probably accidental but can we predict this now days?
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- 3 replies
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- 3 followers
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Got this question in one of the previous year questions. Not sure what would be its answer as it is not included in the reference textbook, reference pdfs etc. Can you guide a bit about this?
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Hopefully Ukrainian nuclear power plants of recent years have built-in redundant safeguards against fires like Western power plants. I'd hate to see another Chernobyl.
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I got the idea that you could theoretically have the best suspension on any vehicle in the world if you could have the vehicle body hover above the wheels. This would also enable the use of omni-directional "ball" wheels that would not be restricted to an axle. My question is, assuming we were able to have an on-board cooling system that kept the bottom of the vehicle at approximately the -300 degree superconductivity threshold, would it be feasible to create this mechanism, or any variation thereof remotely resembling the aforementioned design, via the use of quantum locking, and, if not, is there perhaps another technology that could achieve the same goals?
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- 4 replies
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- 2 followers
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I sometimes like to record the sunsets and sunrises, but standing outside next to my camera for the entire duration thereof is tedious, and leaving it outside unattended risks incentivizing my neighbours to steal it. Does anyone here know of any reliable lockable safes made of glass or clear plastics, which would sound an alarm if a would-be thief attempted to break the glass, and/or how to construct such a safe from scratch if need be?
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I didn't find any resources regarding this topic. Can you help me with some points on how men and society would be important to engineering profession.
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Hi all. Photovoltaic solar panels are around 18% efficient. That means a 1m2 panel should yield about 180 Watts to heat something electrically at full sun. What is the typical efficiency extracting heat directly from sun radiation, assuming also 1KW/m2 irradiance as in a 1m2 uncovered coil like : http://getgotechnology.com/wp-content/uploads/2014/12/Sun-Coil-heating.jpg Would it be around 60% ? Wind and thermal losses should be taking a good chunk, right ?
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For those who don't believe in human caused global warming, this is a topic that probably has little meaning. Hopefully there aren't many of those kinds of people around here. After all, this is a science forum. On the topic of free energy, the question to be asked is if the engineering aspect of it possible. From something I found, it seems to be. I will post a link to another forum that goes into the matter. I guess it will be up to the mods to decide which is more important. Free energy or that this topic was brought up in another forum. One that for the record I am not endorsing in any way. I guess we will find out
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- 1 reply
- 1.3k views
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