Engineering

Im on a science camp and we are building an infrasound detector to collect some data on an incoming meteor shower. We already built the amplifier with some plans we found on the internet. The plans sadly do not show how to build the antenna. We have been searching for a while if someone leaked the info on it bu we cant really find anything. If anyone knows where to find some plans for it or anything of that sort pleas tell us as it would help out quite a bit. I will add the files we have been working with to this post so feel free to check them out. Thanks!!! INFRASOUND DETECTOR.docx

Hello everybody! Analog-to-Digital Converters (ADC) need an accurate voltage reference to convert an input voltage into a dimensionless number. The bandgap reference is common Wikipedia It uses the Vbe of two bipolar transistors used as diodes and passing different current densities. Vbe decreases with the temperature but the difference of both Vbe increases, and at least in simple models, a weighed sum of about 1.24V for silicon is independent of the temperature and relates with the bandgap. Excellent special chips do that. I propose here to let software make the weighed sum and more corrections for further improvements. I didn't check if this is already done…

Hi my name is Mike I am 51years old and have been designing and building my mad inventions most of my life. I started contemplating a plasma gun about five years ago, I designed and began construction and after some time of deliberation I decided to use a shock tube design, It consisted of a charging circuit capacitor bank fired by an S.C.R discharging between two drilled graphite rods which are holding a magnesium wire inside a tea shaped burst disc sealed chamber it is holding back a high vacuum held inside a tapering barrell also fitted with a burst disk at the end, an intersecting tea junktion is fitted just before the end Birst disc to allow a vacuum to be draw…

I need a material that's heat-resistant, non-conducting and not too expensive, I'm using it to make a mini jet-engine.

Good day. I came here to ask educated people. Is it possible, to save the Marshall island by building concrete pyramid filled by sand or soil, so that the top is above the sea level.

http://www.hawaiinewsnow.com/story/38954656/brush-fire-in-lahaina-prompts-evacuations So apparently, in spite of the rain, wildfires are raging in Hawaii. There's plenty of water... it's just that most of it's not fit to drink. It seems inefficient to have to choose between "using tap water that had to be processed on the taxpayers' dime to be fit to drink, on a fire that can be put out just as effectively with impure water," and "trucking impure water from the flood to the fire." Why can't there be two separate sets of infrastructure; one for water that's pure enough to drink, and another that's adequate for firefighting purposes and doesn't have …

I have currently only learnt about Ohm's law and Kirchhoff's voltage/current laws. Is there any other ones out there?

Any Nikola Tesla experts here. Also how effective was it?

I am doing a short course on Circuit Analysis and have currently learnt Ohm's law and Kirchhoff's current/voltage law (simple stuff, basic algebra). I am thinking up to this point, what is the point of learning all this when electrical engineers usually just use Multimeters to analyze stuff like power, current, voltage, resistance, all can be done with Multimeter. What practical application can you think of where using Circuit Analysis skills is better over a simple Multimeter device.

That says i1 i2 and i3. so for node A it is -i1 + i2 + i3 = 0 But you don't solve for B cause it is same thing right, I was watching video saying don't solve for B,

I am wondering if multiple farts from a person who has eaten a lot of baked beans can run maybe a small sized generator. The wind force will be used to turn a turbine which in turn turns the coil through a magnetic field. This should be able to power a small generator right, like a hand sized generator.

Do you feel similar to driverless cars automation technology, there could be Driverless Locomotive and Local trains automation in the future? If yes, how ? How the automation will work where the train is driven without a motorman? If no, why? Is it because too many risks involved? Not feasible to automate ? Thanks & Regards, Prashant S Akerkar

https://www.cp24.com/news/men-rescued-from-flooded-elevator-after-rain-storm-in-toronto-1.4044296 Yesterday's Toronto floods got me wondering about better flood control measures and/or better ways things could be designed to be harmed less by a flood. 1. It says people needed to be rescued from a flooded elevator. If they're not airtight enough to keep the water out anyway, why not put airholes in them so that people don't have to worry about suffocating from being stuck in the elevator? Why not make them out of glass so that there would be good enough cellphone reception to call for help, and if that doesn't work, to break the glass and escape? …

https://en.m.wikipedia.org/wiki/Treadmill Is it possible to design & manufacture portable Treadmill operated by batteries? Is it possible to design and manufacture a remote control device for the Treadmill product? Thanks & Regards, Prashant S Akerkar

I have learned about many circuits which use a timed clock pulse. How is the clock pulse generated?

https://en.m.wikipedia.org/wiki/Fortum_Ski_Tunnel_Torsby Do you feel may more Ski tunnels will be designed and constructed ? Thanks & Regards, Prashant S Akerkar

What is the technology behind distance measurement in Kilometres or Miles while traveling in plane which is above the sky? Is it Satellite providing real time distance measurement information to the aircrew members and passengers? Or Is it altimeter instrument fixed in the aircraft cockpit? Or Is it Radar technology ? Or something else .... Thanks & Regards, Prashant S Akerkar

Is it possible to design and manufacture a Integrated Digital Calendar Wall Clock product? Thanks & Regards, Prashant S Akerkar

https://en.m.wikipedia.org/wiki/Toner_cartridge Can there be alternative materials to Carbon in periodic table of elements used in Toner cartridge for Laser printer? Thanks & Regards, Prashant S Akerkar

Is Petrol fuel lock facility available in all two wheelers vehicles Viz Bikes, Motorcycles, Scooters etc ? Thanks & Regards, Prashant S Akerkar Thanks. Got information that Petrol fuel lock facility is available on the Two wheeler. But in spite of this there are stealing incidents of Petrol fuel. What is the solution for this? Quality locks which cannot be easily tampered could be the solution ? Thanks & Regards, Prashant S Akerkar

1 Is it possible to repair SIM (if damaged) if Smartphone device not working i.e not connecting to a specific cellular service network? 2 If yes, Is it advisable to repair SIM taking any security reasons into consideration? Thanks & Regards, Prashant S Akerkar

I’n thinking of doing a prototype of a remote bluetooth switch for a flashlight. The flashlight would have a BT module and a Li-Ion cell as a power source so there is no problem on this side, the switch would have to have a BT module and a small battery as a power source as well, I wonder if a small watch type CR2032 battery would be enough to power the BT module in the switch and perform switching? The distanse between the two devices would be 10cm at most. The switch has to do only on/off operation but a tiny battery indicator LED would be good too. What do you think? Will a small flat watch battery be enough to power this?

The way circuits work, and, they work in everything electrical, they transfer energy from one place to another. This is where they will provide power to the machine, but, it is only possible to provide motion through magnetism too. Luckily there is the concept of electromagnetism, of course, so the movement part of the mechanism will be provided by the electricity too. This means that the power will provide the motion - it is not that hard to understand, is it? ~ I am of course speaking to laymen that are cruising this forum, hoping they will grasp my concepts. Before we continue into new types of circuits, let's hear from the community who usually find me wrong…

Is it possible to reverse play a Video file? If yes,how? If no, why? Thanks & Regards, Prashant S Akerkar

Small engines like Briggs Stratton may have a governing linkage for steady rpm on certain applications. Seen several implementation ways, but my mower has a weak spring paralleled to the rod, both attach to the same points. How do they work? Makes not much sense seeing such configuration, but there has to be a detail/reason am missing. Is it related to avoid speed 'hunting' or steadyness ? [The choke has nothing to do with the subject] The rod often runs inside spring. The anchoring is slightly different here at the right side lever, attaching to apart holes, which may show more logic : -Images borrowed from the web-