Viewing profile — paulyg

If something needs that much flexibility in it's UI that people are messing with it at the last minute it doesn't belong as something people should be messing with while driving. T…

The article is a bit misleading. They talk about how many AC induction motors there are and how much power they consume. I don't doubt those numbers. But the vast majority of those…

Its supersonic shock waves. https://en.m.wikipedia.org/wiki/Shock_diamond

It won't help Joe Six-pack. And your questions make me think you did not read the article. The manufacturing output will increase due to automation & other improved techniques. My …

I agree pumped hydro is good, but there are only so many places you can site it. > Which is why hydrocarbons produce less CO2 per watt than coal. No. It has nothing to do with wate…

It is true that nuclear power is bad at peaking. That's why no one uses them for that. They are good at base-load power, which is where they are used. Use the right tool for the jo…

Lower gas prices certainly did not help, but if not for regulations introduced during the Obama administration, many coal plants would still be running. I worked, as an engineer, f…

Yes I know how all that works becuase I worked in the utility industry for over a decade. My point was (1) when comparing peakers vs storage you need to consider the cost of: Off-p…

Why are people comparing and debating "batteries vs combustion turbines"? Batteries only store energy and you still need to generate it somewhere. Probably from a CCGT plant. And i…

Your mention of Alibaba made me think of something. I believe the electrical manufacturing world is much more globally integrated than the mechanical world. I say that as a practic…

Wecome to mechanical engineering folks.

This. I took Calc 1 twice. First time was during the day in a big auditorium style classroom. The prof had a pompous attitude, like he didn't even want to be there. I dropped the c…

What all the non mechanical engineers don't realize is the bend allowance is different for types of material (steel, aluminum), grade or strength (high tensile steel will stretch l…

Yup. This. I have a kettle. Boiling water for tea in 2-3 minutes. But if I run it and the microwave at the same time it trips my 20 amp breaker. :(

SharePoint is really good for shared files. But that is what it was created for. It is called Microsoft Office SharePoint. If you turn on Publishing Pages you can make is work as i…

This is also what Composer (package manager for PHP) did. They ported openSUSE's libzypp to PHP to solve the dependency management problem. After resolving versions the dependencie…

I don't understand how people connect oil and gas imports to electricity generation. Go read this article http://www.washingtonpost.com/graphics/national/power-plants... Now how mu…

It was towards the end of the article: "The petrol engine is optimally sized to provide the cruise power at its most efficient operating point, resulting in an improved fuel effici…

They are also glazing over the fact that the system uses millions of gallons of water per year.

I've seen plenty of pictures on the internet of supercars sliced in half and burned after crashes at that kind of speed. For example the Paul Walker crash. From the picture of the …

Gas turbines are around 35% efficient in simple cycle but combined cycle plants are pushing 60% efficiency.

That plant broke ground before Fukushima. How many permits have been issued since then: 0. Perfectly good nuclear plants like Vermont Yankee have been shut down (decided not to ren…