Q:elaborate please. and if you have any sites that would help me please list them..thanks

Perhaps the quantities of farmers in developed countries. Advanced machinery requires far less labor than do primitive methods. My great grandfather harvested corn by hand with a corn knife and bushel baskets. A modern corn picker probably outperforms his efforts ten thousand-fold.

Q:i.e lawn mower, snow blower

Almost every city now has metal recyclers that come to you and pick up your metal. Look in your phone book under recycling, or your local paper for ads.

Q:as for cars, the battery is recharge when the engine is running, but when fully charged, it automatically shut off. Where are the excess electricity going?we used to have frequent power interruptions here in our locality. So, whenever there is electric power.We connect some car batteries to a power regulator/dynamo installed to an industrial machine that should operate constantly. But having the electric power back on normal operation, the owner didn't bother harnessing this energy bcuz they say it was inconvenient.Is that typical of humans?

Burning the extra gas creates jobs somewhere.

Q:Hi so I was just curious if I could get a good strength training workout without the machines like where you push with your legs or the machine where you pull the bar down and it pulls the weights up, I want to know if I can get a good daily workout with just my dumbbells and my bench, Detailed answers are greatly appreciated, any links to websites maybe? In advance I greatly appreciate helpful answers, thank you!

Yes. I always prefer free weights to machines. That's not to say machines can be of benefit though... The machine where you 'pull down' isn't necessary. As an alternative, you could just do weighted chin-ups. The leg press machine is also replaceable with squats, lunges, etc. Machine exercises can be useful, but you can get by without them. *I'd highly recommend investing in a weight rack. It'll help with squats, shoulder presses, and other things.

Q:It seems additive layer manufacturing comes in laser to metal format,if so, acquring just one of these machines (although I realize at a ridiculously high price) covers all the functionalities of many variations of CNC machines. (like mills, lathes, routers etc, of which I assume there are limitations on angular production)Will this not cut the learning curve and rapid prototyping time significantly?Or is there limitations in these type of rapid prototyping machines as well do you think?I just think, learning and using many different machines these days on manufacturing is quickly becoming obsolete. What do you think? Is CNC still a must?

3D printing is a great technology getting better all the time. While the 3D printer can make all of those shapes within a certain precision (they lay down thin sheets of plastic on top of each other) there are many limitations of the process, such as size, materials, precision, and manufacturing throughput that make it not the best choice in all cases. I designed a part recently out of aluminum that thermally connected a tank to a cold plate heat exchanger. It was made on a CNC mill and could not have been made with 3D printing. Because of the size of it, even if there was a material available, 3D printing would likely have been at least 10X more expensive than CNC milling was. More processes gives engineers more design freedom to come up with better stuff.

Q:I wanna know why is machinery production more effective than labor?

Machines work everyday putting out the same quality of product. Humans can vary everyday with there mood and they could have 3 different shifts come in doing different quality too. Plus when holidays come the humans are off work when the machines are sometimes still running with a skeleton crew operating them. Humans are also more expensive because of wages and benefits and lawsuits when things dont go well for them.

Q:Hello. I have spent a long time on this one question? Can anyone please help? Thanks.The following accounts and corresponding balances were drawn from Winston Company’s 2012 and 2011 year-end balance sheets. Account Title: Machinery 2011: $425,000 2012: $520,000 Old machinery with a book value of $5,000 (cost of $25,000 minus accumulated depreciation of $20,000) was sold. The income statement showed a gain on the sale of machinery of $4,000.The cost of machinery purchased is______

Beg Balance 425,000 less cost of machinery sold 25,000 plus cost of new machinery 120,000 = End Balance of 520,000 A gain on sale of 4,000, with a book value 5,000, means cash proceeds were 9,000. DR Cash 9,000 DR Accum deprec 20,000 CR Machinery 25,000 CR gain on sale 4,000

Q:A heavy piece of machinery is raised by sliding it a distance d = 12.5 m along a plank oriented at angle θ = 20.0° to the horizontal, as shown below.(a) How high above its original position is it raised? m(b) How far is it moved horizontally? m

The trigonometry of a right-angled triangle .. (a) Height = 12.50.sin20 .. .. .. ?h = 4.28 m (b) Horiz.distance (triangle base) = 12.50 s20 .. .. ?11.75 m

Q:My dad likes machines, has been a machinist for pretty much forever.He works VERY hard-( on his feet most of the time.No air-conditioner.Long hours.etc ).

No, but the love of mechanical things and how they work is what keeps us going.

Q:What's the difference between an automatic watch and a mechanical watch?

There is also a "automatic" appearance and ordinary mechanical watches are very similar, but thinner than the ordinary mechanical watches can be very small, it is actually a combination of mechanical and electronic form, it is the power source by button battery or solar battery powered quartz oscillator, this kind of table travel time is very accurate if, generally with the button batteries a year for a change, if the solar cells do not change, now most of the table.