Engineering

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-

A signal is variable in time domain , why we have to use transform tools(Fourier transform) to frequency domain? if so signal transformed what kind of characteristics we could get? or In which way that transformed signal is useful ? Thanking You waiting for your valuable answers.

Do you feel it could/may be useful to display Flight number electronic LCD display on Front glass panel of commercial airplanes? Example : Flight operator : Jet airways. Flight Number : 9w234 Thanks & Regards, Prashant S Akerkar

Do you feel it is useful to have pocket transistor interfacing with headphones for listening to radio AM & FM tuned stations? If yes, is it feasible to design & manufacture the pocket transistor with this feature ? Thanks & Regards, Prashant S Akerkar

Is it possible to give names with specific colour viz red,green,blue etc to the utensils with the electric operated machine pen ? Utensils materials could be Aluminium, Tin, Stainless Steel etc If No, Why? Thanks & Regards, Prashant S Akerkar

Do you feel it is feasible to design & manufacture solar panels using Carbon or Germanium semiconductors ? If yes, any advantages regarding the same? Thanks & Regards, Prashant S Akerkar

Do you feel it is useful to have scrolling electronic display panels inside Elevator / Lift displaying Flat Owners names in each floor in Residential complex and Offices names in each floor of commercial complex building ? Thanks & Regards, Prashant S Akerkar

Hey, sorry that it's been years since I last spoke to any of you, but I thought of something that would be best discussed with any physicists and/or engineers around here. There was this science fiction story I remember hearing about, where a long megastructure worked as a sort of train between Earth and an orbital space station. At some point I also heard that the megastructure would not fall down, because it was kept stable by Earth's rotation. I was thinking that maybe, by applying the same physics and engineering factors, people could make gigantic solar panel that reached out into space, allowing for even more energy collecting than solar panels we have tod…

Hey everyone, I hope that I will find the right answer here: attached here an image of front (the upper) view and top (the lower) view of some shape (I am working according to the first angle projection). my question is - what is the method for finding the third view (the side view). is there any general method to solve this kind pf problems? I kow that I should draw a 45 deg line, but from there - how do I know whice points in the known views corresponds to the points in the unknown view? thank you so much! new doc 2018-07-20 00.40.38-20180720004046.pdf

How does it work ? What equipment is on board jetliners to provide enough oxygen for the occupants ? Pressurizing cabins is one thing, but where does the amount of oxygen consumed comes from ? Never seen at ground support equipment, any oxygen filling operation. There may be oxygen cylinders for the masks that drop from overhead on emergencies, but that has to be unrelated.

New design worth sharing for your information... ----> https://www.ceramicspeed.com/en/driven

This has been asked on a guitar forum. Scenario: Two cases, one is substantially heavier than the other in that the shell is much thicker. The fit for the guitars is close all around and the interior material and structure is identical. Dropped from some arbitrary height with an acoustic guitar inside, which would protect the guitar from shock the best? The difference between the two is the weight; Let's say one is double the weight of the other. Also, would a snug fit protect better than having a little space around the guitar, so that it can move a bit?

Trying to build a machine that does multiple things: GPS, touch screen, computing, microphone, camera, motor control, wireless internet, etc. Any advice? I've heard Raspberry Pi, Arduino, etc. New to this whole thing...

Hi i am 14 years old and need help on a science project for which I need to heat water immediately in a test tube at a temperature as close to 50 degrees centigrade as possible but not more than that and keep the water heated at this temperature only. please advice thanks and regards

I have a 16' wooden beam across the carport...that was 4' short of the opening, so the contractor put another support post to extend the beam. I want to remove post after I sandwich the 4.75" wide beam with two 8' long steel plates. They would be attached by pass through bolts in the center, and wood bolts along the perimeter. Does this appear to be well engineered? Do I need 1/4" steel plate or will 3/16" suffice?

Hi science guru's I'm doing some reaserch on photoactive fabrics that can change there composition when exposed to UV light. I'm in no way smart enough to know what I'm looking for so I was wondering if anyone could direct me. To give an Idea of what I'm looking for allow me to be more specific. I'm looking at fabric which can change from something that can let light throigh to something that can block light out with the transition being the disappearance of UV light turning the fabric solid.If anyone has done reaserch like this or knows where I can start my own reaserch into this there advice and help would be much appreciated.