npts2020

Jackson33; I don't see how you can say that privatizing Medicare and Social Security will make anything better. Our health care system is mostly privatized as it is and provides some of the worst care at by far the most cost. Lack of ability to deal with "legacy" i.e. retirement costs is supposedly one of the biggest reasons GM and other companies are having financial woes. How has the private sector done any better job than the government in dealing with either one of these things?

I believe the OP is referring to a particular type of genetically modified eggplant.

AFAIK it is possible to use the full EM spectrum to produce electricity but there are ranges, particularly on the low end of the spectrum, where it is probably not practical to do so. Not all gamma radiation is high energy. For instance, visible light is not generally considered to be high energy. The reactors currently in widespread use do not primarily use gamma radiation, even though there is a lot of it, for heating water (which is where the energy is extracted from to make electricity), it is neutron radiation. The thermal reactors used for electrical generation work by heating water to make steam, which is put through a turbine, which turns a generator to make the electricity.

It should be pointed out as well that ~$350 million is the total amount of Greenpeace expenditures worldwide and that spending on their climate change program is only a small fraction of that.

Light does not have temperature, it has energy. Only substances with atoms have temperature. Light can impart some or all of its energy to a substance to increase the temperature of the substance. (c is not temperature)

Start applying for scholarship money. First place I would look is Pell grants.

I will leave it up to you about how to use sheets of crumpled paper but when you drop the egg, make sure you drop it with the narrow end pointing down. Also, the fresher the egg, the tougher the shell will be.

Owell, they removed the video from your link.

Talk about government control of the economy $3.7 trillion is about 1/4 of total expected GDP!!!

TomBooth; I well understand how turbines and refrigerators (even gas ones) work. The problem I have with what you are describing is that once a gas passes through a turbine, it is in a lower state of energy, cooler and less pressure. The pressure part is what will keep this from working. After going through the turbine any other gases will want to flow to the exhaust side of the turbine until it builds up pressure that is higher than somewhere it is able to flow. While a check valve would keep exhaust from flowing backwards into the turbine, you are building up pressure there, which will cause the turbine to stop turning. It might be an interesting and informative exercise to build a prototype but I would not be investing my lifes savings in this venture.

TomBooth; Why wouldn't this engine work even better in a furnace? You have even greater potential temperature differential than at atmospheric values. The other thing I am not understanding is why your heat sink will not become the same as ambient after while and no longer give you the differential required to make it run? This is not a trivial matter for operation of any power generator and is usually done by pumping great volumes of water, air or some other coolant through the sink. You may claim all you like that there is some magical differential in temperature and pressure but there has to be a mechanism to create and maintain it. What you are describing does not do it.

TomBooth; A turbine and an air tool both work from expanding a gas (air in this case) across a set of blades. A pressurized tank or pump provides the differential, causing cooling at the point of expansion i.e. frost on the air tool. In your turbine I am not understanding where you are getting a vacuum to draw warm (or any temperature) air through your turbine blades. If you are not familiar with thermodynamics, it would be well worth your while to learn about the subject before investing a lot of time and energy in what you are proposing. I think when you look closely, you will find that whatever is used to create the pressure differential to draw air through your turbine will use more energy than the turbine generates. In other words, you need a power source of some kind to run it because you don't get out what you put in. I do think that if you can even come up with a more efficient motor it would still be worthwhile, but I will believe it when I see it.

You certainly can measure things like that (the highlighted part). It is just inconvenient and not as accurate to do so.

The argument I like best is that reduced taxes lead to more revenue. Does that mean if we reduce taxes to zero we will have infinite revenue?

In addition to having more limited opportunities, I would think a fairly high percentage of the drop-outs did so at an age where they had no realistic chance of getting good employment because they were under 18. Idle youth=more crime, in most cases.

The two best things I have heard about it are that it will hook up to almost any kind of wifi network and has a 10 hour battery life under heavy use.

Why haven't they set up a non-profit foundation for donations to support ArXiv? It seems to me if they had a voluntary donation box to check to donate $1, $10, or $100 when you got to the homepage it would help them greatly. Even if only one in a thousand visitors donated $10 they would recoup over 80% of their budget.

Let me qualify this first by saying that I am not a mathematician but it seems to me that a point is the smallest part of a surface and not a surface in and of itself.

Can you name even one significant contributor to the field of physics that was not also a very good mathematician?

Why is it that the only time unpopular decisions are made is when it involves going to war? If Democrats in America had an ounce of intestinal fortitude, health care reform should have been a "slam dunk" compared to going to war in Iraq. Unfortunately we are unlikely to ever see anything like this inquiry in the U.S.

In my opinion a large part of the problem is the notion that every activity involving commerce has to be done for a monetary profit and anything else is "socialism", which of course every American knows is a bad thing. It seems that universal health care is only a good thing if we can make enough money off of it and seemingly enough people on both sides of our one-party system agree with this. I don't know or really care too much what kind of horse trading has gone on to water down a mediocre bill to something so odious that even many supporters of changing the system cannot support it but here we are with a health care system that is ranked below countries like San Marino and Costa Rica. Maybe a solution would be to not allow any kind of negotiation outside of public scrutiny? Kind of reminds me of certain negotiations that went on prior to crafting an energy bill a couple of years ago.

You guys are just confirming what I have been saying for years about the Democrats and Republicans being the same party. How is it that a supposedly "liberal" party has members that are even more conservative than the "conservative" party? Fact of the matter is that it is all show to keep things basically the same, neither party has any principles that can be called their own. For all of the voters supposed anger at congress, the political process, etc. how many districts do you think will actually "throw the bums out" and elect somebody who has not been part of this process of putting on a show? Which party has proposed bold new solutions to any of our problems?

Or rather misused all of the above.

The cutting tool and gear are synchronized through gears in the lathe. As the gear being cut slows down so does the cutting tool by the same amount (probably a proportional amount). No matter what speed the chuck (part holding the piece being lathed) moves, the cutting tool speeds up or slows down by the same amount. It works the same for doing threading on a lathe.

Well this radical leftist only had tepid support for the house version. Once they stripped out everything I could support about it, I became convinced that it was better off dead. I will say that forcing everyone to buy health insurance is fair when they also pass laws so that everyone also is not allowed to smoke, consume alcohol, and eat bad foods. Everyone should also have to exercise every day. Otherwise I am paying for their bad habits.