NO LED is worth buying. It has the worst quality I have probably ever seen since HDTVs first came out. If you MUST go with LCD you will be very happy with it. To me, plasma is the best option (next to laser, which is like ultra-expensive, but I hear it's the best)

1. Assassination led to World War 1?

michael gives an excellent answer except the Maginot line was built after WW1.....and yes, the Germans did go around it, attacking in 1940 the same are they attacked in 1870 and 1914..... and I am unfamiliar with a USS Housatonic being sunk by the Germans.... she was sunk by the Confederate submarine Hunley outside Charleston SC in 1864.....but yes indeed, unrestricted sub warfare drew the US into it....

2. What are the factors that have led to the rise of Salafism?

The one & most important factor that led to Salafism is division of sects.A person claims to be a muslim but he does not believe in the Last Day or he might say offensive things about the Caliphs of Islam or he is a Muslim who does not pray or fast yet say that Islam is in the heart & do not show it through actions . So to distinguish between such Muslims,Salafism came. A person is not on the path of Salaf us salih if he not a good & practicing Muslim or if he rejects anything from the teachings of the previous righteous predecessors,Companions of Prophet & Prophet Sallalahu Alaihi Wa Sallam himself.He need not attach himself to the Salafism & rant around,his actions should show his intentions & should be in accordance to Sunnah

3. What led Charles Darwin to create his evolution theory?

he went to the galapagos islands and found proof that an extinct bird species that had lived there was similar to a current species of birds that lived there

4. Choosing series resistor for Optocoupler LED

There is no need for an Optocoupler here.RS232 can go much further than this easily with higher impedance. Just need UTP cable for balance on ingress EMI.You show common grounds and there is probably supply crosstalk leakage. Just use a low impedance switching circuit to shunt Vbe with ESD protection when the switch closes.simulate this circuit - Schematic created using CircuitLabAll R values can be scaled up if 5mW power is a concern.If there are high current noise impulses on wires nearby, you can add 10nF to 100nF Cap across Vbe. Use UTP wire for CM rejection and STP wire for an aggressive noise environment.Optoisolator will not block help on the above noises since there is no ground current in the open switch state to have crosstalk. Thus no advantage. But if there was capacitive coupled noise to the cable, the opto would pass that thru as current.

5. Would you support a one-world government if it was led by Obama?

No. Clearly, Obama has demonstrated the ability to lead a country, but I do not think he - or any one person - could handle running a whole planet as diverse as Earth. You would need some sort of council with representatives from more countries or cultures or whatever

6. led strip on 01 mustang?

Take it to a auto body shop

7. What led to the decline of the Ottoman Empire?

Let us say four major reasons:1: Arabs revolution lead by Lawrence of Arabia 1914-19182: Opponent movements within Anatolia (Turkey now)3: The extremely bureaucratic Ottoman system which was an advantage at the beginning4: The Zionist movement, because with Ottoman Empire, there is no invading Palestine and creating a Jew land. so they used their influence in pushing western powers to destroy ottomans

8. which is the better LED for plant growth?

I think such a small difference in wavelength is negligible. Plants can utilize light between 450-700nm. Longer wavelengths are better for fruiting plants. I would go with more lumens.

9. car LED lights?

yes there legal yes they are brighter and react faster yes most will install in your stock socket yes you can get a controller to make them flash(although it may not be legal on the roads) yes you can use them instead of neons yes they will make your blinker blink faster yes they make something to fix this yes they use less voltage yes one can go out without the rest going out yes they are better goodluck