Has China finally figured out how to beat the USA?
China is a very smart country. They understand they can not possibly go up against the west militarily, but they sure as hell can bury us economically. Militarily, outcomes are very hard to predict. There is way too much chaos. Economy is far easier to predict and manage. China, after 5,000 years of learning from the past and that war is really a last resort, that diplomacy and economics are the only way to go. China has also stated they will not launch a first strike against any sovereign nation. The USA has not said any such thing. Proof is in our wars now. As far as Mandarin. I'm an ex pat from the USA living and teaching English in China. I assure you beyond a shadow of a doubt that you will not need to learn Mandarin. It is one of the most difficult language to learn where the tones must be 95% correct to be understood. Westerners can spend years learning it and still suck at it. English is far easier to learn and is also the universal language used in international business and government. The Chinese government knows this and that is why 300 million people in China are learning English. Peace Jim .
Why does my house have a rotten egg smell?
Have you opened up the heater to look inside? There should be two access panels held in place by screws. One for the electrical and one for the heating "element(s)". Check to see if the filter is dirty first. Most people don't check the filter very often. It sits below the heating "element". They should be changed once/twice a year. If its dirty replace it. And make sure it fits snuggly into place. Filters that don't fit properly are the main cause of elements getting dirty. This can drasticaly reduce the life of the unit. The heating elelments look like the radiator from a car. There are usually two in an A-frame position. You should be able to see both the top and the bottom of these heating elements. Look inside to see if they are clogged with lint or other debris. If they are clogged (but only lightly) try to clean them with a toothbrush by gently brushing the foils to remove the debris. If the are quite dirty spray them lightly with water and use the toothbrush to carefully remove the lint. Be very careful, the foils are easily bent and can cut you. If this doesn't solve the problem it' likely a switch/electrical malfunction. As far as the smell goes. . .check your vents (with a flashlight) for debris. Floor vents have a good deal of stuff fall into them throughout the year. They should be vacuumed out once in a while for fire safety as well as general cleanliness. You won't be able to get the the majority of the duct system but you can get to the first few feet of each register with the vacuum hose. That's all I know about heaters without actually looking at the one in question. Here's a link to an awsome repair website http://fixitnow.com/2003_12_01_whatsnew_...
Incandescent Light: Why does a bulb glow when electric current passes through it?
Hello.I think your question is, "Why does a bulb glow when electric current passes through it?"Considering this, bulb here implies, incandescent lamp. (I suppose)As we know, whenever current passes through conductor, there is always some heat loss, denoted by (I^2*R).The filament inside the incandescent lamp is generally made up of tungsten material. The hot filament is protected from oxidation with a glass or quartz bulb that is filled with inert gas or evacuated. The light bulb is supplied with electric current by feed-through terminals or wires embedded in the glass. Most bulbs are used in a socket which provides mechanical support and electrical connections.Hence when the thin filament carries current through it, it heats up to high temperatures to give light output.In a "standard" 75 or 100 watt 120 volt bulb, the filament temperature is roughly 2550 degrees Celsius, or roughly 4600 degrees Fahrenheit. At high temperatures like this, the thermal radiation from the filament includes a significant amount of visible light.Of the power consumed by typical incandescent light bulbs, 95% or more is converted into heat rather than visible light. Other electrical light sources are more effective.In the US, federal law has scheduled the most common incandescent light bulbs to be phased out by 2014, to be replaced with more energy-efficient light bulbs.(CFLs and LEDs)Traditional incandescent light bulbs were phased out in Australia in November 2009.However, researchers at Massachusetts Institute of Technology have come up with some significant outcomes in recent months. A proof-of-concept device built by MIT researchers demonstrates the principle of a two-stage process to make incandescent bulbs more efficient. This device already achieves efficiency comparable to some compact fluorescent and LED bulbs.For more info visit following links:How do incandescent filament lamps work? A nanophotonic comeback for incandescent bulbs? Enjoy!!!