Engineering

Hi there! I have few years still without any solution. I could find just only one exemplary of this bulb or lamp there I share pictures, this is exactly what I need to know what it is, brand or datasheet. The base is E27. AND the most important, In this VIDEO you can see the lamp working: (I don't know is this usage is the correct usage, the lamp is powered with HV with only a single cable, it runs like a Plasma ball lamp) - Aparenlty these lamps are used to generate ozone. Hope you can help me! I have YEARS with this issue... I never could resolve it... Kindly Regards ;D

I just found out that Silicon is a kind of metal, which apparently has nothing to do with the periodic table, and everything to do with it not ending in a vowel. I was wondering, does Silicon have useful properties for use in kitchen interior ?

If a 200mAh 3.7V battery (0.74Wh) takes 1.5hrs to charge over USB-C, is there any benefit to charging to one the of available higher standards above 3A (USB-C v1.2) i.e. USB PD v3.0 will charge at 20V/100W/5A. Many thanks.

I am looking for right-angled metal cubes, with one vacant face to allow for concentric nesting, their tight tolerances allowing them to slowly sink under the force of gravity. Although CNC milled options would achieve this, are there any cheaper manufacturing methods ?

With the search for oil and gas in the North Sea, significant coal deposits were discovered in this sea (1). The localization of these deposits in a sea-bed prohibits a traditional exploitation by mine. In situ combustion was considered with an aim of generating a combustible gas mixture easier to extract. But this technique was too polluting. There is perhaps another resource to consider: the methane adsorbed in the pores of coal. This type of gas is called CBM for Coal Bed Methane (2). Several data could promise a significant and exploitable gas resource: - the amount of coal present under the North Sea seems significant; the amount …

While my hunky husband was lifting the chair up, and my brawny brother pushing the frame down, I kept hitting the top of the slide with a screwdriver, to try to loosen the slide. But these parts are still wedged too tightly! We ran out of energy and ideas! How can we life hack this please? https://imgur.com/Hu6rV57 GIF from this video. Illustration from this PDF. Chair manufacturer's page list these both.

A Swiss company is exploring the measurement of perceived time (v.s. universal time) and is developing a device to measure personal time based on biometrics. Exciting perspectives. Their video presentation can be found here:

Hi. Any methods for milling channels in silicone rubber that you may suggest ?

Given that there is a general understanding that large surface vessels, like shipping containers, are likely to benefit from being converted to being Hydrogen powered, over other non-polluting technologies like batteries, what are the practicalities of this ? On average a shipping container, worth its salt, will look something like this: Length : 400m Beam : 60m Draught : 14m Gross Tonnage : 210~235 TEU : 20~24k The fuel that powers their diesel engines is either IFO180 / IFO380, of which is trading today (mid-2022) at $506/mt on the World Bunker Prices index (Rotterdam) I read online that a 10k TEU container ship running at …

Here is the idea. If an air conditioner was powerful enough, with intake and exhaust designed properly, you can remove Coronavirus (or any virus) from the air by the A/C moving the air faster than normal in an upward direction. You want the air to circulate so fast that if someone sneezes the water droplets will remain inside the room only a few seconds before it is sucked out the ceiling vent. For cooling the room, the idea is cool air enters the room near the floor and the warmer air exits through a ceiling vent, the "return." For heating the room you would also introduce warm air through low floor-vents, then the exhaust exits through the return in the ceilin…

is there any other alternative to autocad?

Airships are known to have trouble taking off and landing in conditions with high winds. Could it be feasible to use a system of VTOL drones, that are scaled up versions of the RC models. To function as tugboats to guide airships along their approved takeoff and landing routes. Also in this era where transportation by truck and trains are becoming increasingly inefficient due to rising fossil fuel costs. Could it become feasible to deploy a fleet of airships to transport multiple tons of commodities and goods over long distances. Due to them offering better shipping MPG (miles per gallon) numbers in contrast to current day options which require more fuel.

Has anyone ever heard of any plans to transport water from flooded areas to drought-stricken areas? What would it cost to transport huge quantities of water a thousand miles? Maybe cheaper than desalinating sea water? The experts always stress conservation and water recycling. Every drop of rainwater needs to be saved. Every house in drought areas should be designed to channel rainwater down drains around the house for storage under the house. Parking lots, streets, and sidewalks in cities could also channel and save rainwater in underground storage. "But moving vast quantities of water is not simple or cheap, and thus not realistic, experts say. Mostly, it's t…

Two large circular magnets enwrapped with a lot of energy while spinning in opposite directions at a very fast speed while the like poles repel one another will create a warp drive. I don't have the Money to invent nor experiment on it so i am sharing it here if anyone is interested in investing to invent it?

I know now that making a full on vacuum airship is unfeasible for it's compressive properties. So why not just make a rigid airship that is evacuated enough that the hydrogen is no longer significantly dangerous to it's surroundings, using say 25-30% density of neutral hydrogen? What's the weakest compressive material I cod use for that? Could I, in practice make any rigid, non-curved part out of a honeycomb-like structure of LDH-cells? This could be revolutionary in creating lighter weight rigid parts where volume isn't too sensitive and lighter weight is an advantage. Can someone give me a formula(and tell me all the dependent/constant variables) to get real values…

Lighter than air ships have been made to float using light gasses such as hydrogen and helium. Hot air balloons reduce the density of air by heating it. I wonder if it would be possible to make an air ship float by emptying the air out of it instead of replacing that air with light gas.

Hi. On a recent flight, perhaps on an Embraer aircraft, noticed diffused flashing red lights on top of wings that I never saw before. Anyone knows ? Took a video but does not show the detail, I was unable to ask the pilot at exit. They are near the 'ends' of wings tops, a centered row of 12, aiming upwards ? Seem as diffuse as if the wing was translucent and lit from the inside. Just curious. L wingtip ooooooooo ooo =================== Main fuselage =================== ooo ooooooooo wingtip R Found a image on the web to better explain the location of those lights on top of wings.

Hi, In my situation, I am dealing with two ideal gases traveling down a pipe at the same bulk velocities. I am only considering a 1-D treatment at the moment and I would like to find out at which point the two gases should be considered a well mixed, homogeneous mixture. Would anyone know either the particular formulation or even the subject matter to consult to determine the well-mixing of gases? Thanks and regards.

Artemis 1, formally Artemis I and previously known as Exploration Mission-1, is an arranged uncrewed Moon-circling mission, the principal spaceflight in NASA's Artemis program, and the main trip of the organization's Space Launch System rocket and the total Orion space apparatus. What are your thoughts on this ? I wrote an article on this but advertising it here is against the rules.

Hello Everyone, I am in the learning face of Artificial Intelligence and looking for an online book. I have checked on google source but there are lots of books and I am confused between James V Stone and Vinod Chandra Author books whose names are Artificial Intelligence Engines: A Tutorial Introduction to the Mathematics of Deep Learning and Artificial Intelligence and Machine Learning 1st Edition. Can anyone tell me, Is the right choice for the beginner level?

is this at 1.55Volt LR41 battery and the current can come to microAmpe?

so, see .... The problem statement is really simple, make a 150mm max pen rocket, with solid engine(sugar and kno3 composition) but, it gotta achieve a min altitude of 10 meter, and land back ...... Things i think we'll need is , oxidizer fuel proportion thrust control, stabilization solution for balance, and many more and no electronics allowed, What u guys think ........

My old model car was'nt charging battery enough, first i thought it may be battery issue. but i recently replaced my battery with a new one so there are lesser chances of it. i first check online reasons behind no charging of car batteries and found that it may be due to alternator which may be not charging the battery. So i test alternator of my car, i wana know which is valid method of alternator testing? I found a blog on this https://www.scienceforums.net/topic/126940-how-to-test-battery-of-a-vehicle/

For the given context finding the dependencies and rebalance them for optimal behaviour

Dear all, I use Gwyddion for surface analyze; It is not clear what is the radial PSDF, and the axis signification (Wr and k) ; Is there someone who use this function ? Thank you in advance... Alban