Engineering

It's hard to define Transhumanist technology , but I would say that Transhumanist technology is any technology that can modify human beings , expand lifespan , achieve space colonization and create something that is physically far smarter and stronger than human bodies Transhumanist technologies include > Biological immortality , being able to change physical(merging with machines, changing physical gender and other biological enhancements) and mental (modification of personality, feelings , emotions , attractions , sexuality,gender identity and enhancements of things like intelligence) traits and other space technologies and artificial superintelligence , mol…

I’ve a question that has been on my mind for a while, and I’d like to hear the opinions of people who are better versed in electrical engineering than I am. This is really not my area of expertise (nor interest, tbh). So I recently acquired a digital device that is powered by a Li-Ion battery. My question is - what is the scientific consensus as to which charging strategy will maximise the lifespan of the battery? Assume room temperature as well as European climate humidity levels. Also assume common sense precautions, such as not leaving it plugged in unnecessarily etc. I have tried to research this in the literature, but what I found is contradictory informati…

So I noticed yesterday a speed indicator that plainly showed motorists in no uncertain terms how fast above the speed limit they were driving. Motorists ignored this. I assume there was a hidden camera nearby to catch these speeders so they could be ticketed later on. But that does nothing to prevent them from running over pedestrians in the meantime. So I was thinking... a car is a Faraday cage, right? As in, it spreads electrons out throughout its exterior, preventing those inside from getting shocked. So why not use an electron gun on cars caught speeding (with an exemption for emergency vehicles, of course) such that the attraction between the …

Hi, Firstly why there isn't any Electronic subforum here!?? Secondly i installed a pack of CCTV for my parents' house Then i saw one of the weak chinese cameras switches to B/W black and white while the night. I installed several LEDs around the parking and selected 'DAY MODE'[forever] in the settings of the DVR, Well, One has to turn on the LEDs every night, and switch off every day!! Then i decided install a Photo-Cell that does that automatically, Then i thought and remembered that the camera itself had a noise like to noise of the relay for switching D/N! Then i decided research for diagram/datasheet/schematic of the camera…

So I've recently been getting back into my fascination with concave mirrors, and was considering using them and/or some other means of a solar collector for boiling water as we get closer and closer to those winter months. However, before I float this with my landlord and/or boss for my home and/or workplace, I want to make sure I can keep potential fire hazards to a minimum. A. If I make a concave mirror whose focal point is inside the mirror (ie. half-sphere concave mirror) does that mean that there is no risk of it causing a fire if it falls off the balcony or comes loose? B. If I were to instead of using a concave mirror, use a marg…

Hi I have an air filtering questions. Due to a heavy pollution caused by neighbors burning plastics, polystyrene and rubber the air inside the house is not breathable. Long story short: this problem is ongoing and will not stop. I purchased the WINIX ZERO Air Purifier with 4 Stage Filtration It consists of 1. fine mesh 2.hepa filter 3.carbon fibre filter 4.Plasma Wave technology, which creates Hydroxyls. The device helps but is not efficient / not quick enough at removing the harmful smoke. I can't afford an industrial filtration system of higher efficiency. DIY is an option. I plan on 3 stages: hepa, activated carbon granules chamber, water. For…

I am experimenting with an outdoor fireplace. Currently I am using a stainless steel tub from a washing machine. What I am noticing is that while the vessel gets hot it overall radiates very little. (unless fire is intense and vessel is glowing red hot). If I have line of sight to the fire/coals the radiated heat is substantial but drops off dramatically once below the rim of the vessel. I also use a ceramic coated clothes dryer drum placed on top to suppress sparks/embers at times and to safely contain the fire when unattended. *see attached images Goals- g1- To maximize heat transfer from fire to area of people seated around the fire. g2- To keep the fire…

Hello to all sailors, record chasers, and enthousiasts in general! The thingy sketched below is meant to be a sailboat - at least to the sense that wind moves it - and to be fast. The sail, high in the sky like a kite, resembles essentially a glider. The centreboard, fully immersed, resembles a glider as well. A thin cable, possibly of steel, binds them. Said sailboat has no hull at the surface: only the cable cuts through the surface, meaning a tiny drag there, and the ability to sail through rough sea and deep water. On the other hand, the need to control actively and permanently the sail and the centreboard intend this boat for artificial records only.…

I have been trying to research and understand whether handheld infrared thermometer guns use ultrasonic sensors. I am investigating the accuracy of these devices and understand that due to the inverse square law when the distance between the radiation source and the measuring device increases by 2 the intensity of the infrared radiation would decrease to 1/4. What I am trying to understand is whether distance is factored into the algorithms used to convert surface temperature to a 'body temperature' reading as this seems like an important factor. The only thing I have been able to find is that depending on whether you want to to measure close range or long range th…

Is the discovery/innovation/invention of something novel left to those with specialised knowledge given to them through a full time working career? I was thinking of becoming an autodidact in the STEM fields and wondering what I could produce through invention/innovation to patent and make my own/put my name to. Even discover some new kind way of thinking about a scientific problem or mathematics problem (I read there are 5 more million dollar math questions left from Clay University in the US). The invention part I think is more feasible and the scientific discovery is left to those with funding and technology to discover with so they usually have a career in it. A…

Watching this video of how easy it is to syphon, I was wondering of how to calculate the rate of flow, but I couldn't find out because I needed to know the velocity, but have no idea? video : It seems that the rate of flow has an arc as it slows down once approaching an equilibrium. However, in my own test I didn't syphon into a container, but down the sink, so the flow would have remained constant. All I know is the Density of the water at 0.99975cm3 at 10°C, and the inner diameter of my pipe being 16mm. Every equation online asks for information I do not have, or that of which I cannot figure out. How do I calculate how fast the water is f…

Hi, Someone told me after building a multi storey building. In one section of the building existing downpipe(s) weren't effective at transferring water from roof to ground level - water I believe was pooling on roof. To solve this, a screw design (see attached) downpipe was created. The screw design supposedly helped suck the water down the pipe. There are two problems that appear to me straight away: 1. The velocity ignoring frictional losses down the screw design would be less because gravity forces are not pulling the liquid straight down, the smaller the incline (from horizontal) the slower the inlet velocity of liquid. 2. The internal screw…

Hello my fellow science members! I want to create a music audio program to create beat rhythms, audio tracks and even record your voice.... My first inquiry: What do I need to a create a digital synthesizer that creates "sound" ie piano chords for "example" from "total scratch??" I know C++ And Python Programming... But "really" prefer a simple route.. ThnXxxx In Advance!

@Sensei I'm trying to make a laptop that is solar powered purely from scratch could someone help me plan it out ill be editing this list as I go but right now I'm working on: motherboard solar panels finding a good online PCB designer that I can use to design a motherboard The time limit is till January 1st but I have to make 3 ideas but since this is the 1 I'm most enthusiastic about ill spend a month on this idea and 2 weeks on the other ideas my questions are {what other parts would I have to create to make this a fully working laptop that can type up on a word editor and send emails it's supposed to be a baseboard working computer } if yo…

what is a motherboard made of and how would i make 1 i have a budget of 1000 dollars in this hypothetical scenario and would only like to print 1 if you could help me it would be of great thanks

I was thinking of painting a copper plate with, maybe black spray paint and leave it under the sun, will the copper plate heat up faster than without black paint? How efficient will the heat transfer of paint to the copper? What is the best kind paint to be used?

Greetings. Do you know of a simpler simulator program on the web to find times a model submarine takes to sink to bottom of a reservoir; and time it takes to reach surface from bottom when its buoyancy is changed/controlled ? Thanks

I like to bring my toothbrush to work and brush my teeth at work, but sometimes I forget to bring my toothbrush. I was going to leave one at work, but I can't leave it in an airtight safe or it won't dry properly, and I can't just leave it on a cup in the office because I don't know if my coworkers might use it and I might catch whatever diseases they may have. Is there any lockable container I can put something in, that I need a key and/or combination to access, but that allows anything put in it to dry out?

Im looking for a simulation software the can simulate how liquids compresses when done this way instead of a linear compressor. Black is a solid wall, lets say the chamber is indestructible and we can apply as much compression as we want. I wish to know how much energy in kw is required to compress them so much in the center and how much pressure there is in the center. What I want to achieve is fusion, tho I just want to compare how much more efficient this design would be compared to others that use linear methods. I would like the chamber follow the golden ratio. Even if everyone says this wont work or anything, I just wanna see what happens

Hi all. This not numbered ball bearing tells by dimensions to be a '6201ZZ' type; but has a groove where a staple-shaped piece lodges-in. Set aside to show the groove where fits. Is there a nomenclature suffix for such feature that you may know ? It has only a faint "USA" marking, but it is metric, from the seventies as far as I can tell.

Roads are often the go-to example of things that need to be a public service. I've always thought health care was a stronger example, given what happens in countries where it's public vs. where it's not, but I'm willing to entertain the idea that roads are a better one. For the purposes of this thread, I want to put aside all concerns about whether toll roads are unfair to the poor in and of themselves. It's not that I want to trivialize that; I'm absolutely concerned about it and I think both Canada and the USA could do with a stronger public sector; but there was one specific aspect of road privatization that stands out to be more than its effects on the poo…

i was wondering if some one can create a time machine with magnets and electricity at a college because they have the tools or a university

What about the question: Can musclepower be used to improve energy-generation?

or ,are there any specific research that might support this idea?

Hi all. Does anyone know this new crap about hose sizes ? Trying to find 1/8 inch or 3mm i.d. hoses; found this. Have these geniuses never heard of the millimetre ? What entity governs dimensions and terminology ? ----> https://ph.parker.com/us/en/hydraulic-constant-working-pressure-hose-5000-psi-globalcore-787-hose