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1. Have you ever led a double life? If so when and how?

Yes... when I was a user and a drunk. I wore masks for every occasion. I had no clue who I was because of overwhelming social insecurity. I could not find where I fit in so I would try to be like... whatever crowd was accepting me at the time.. I am still learning who I am everyday. I have learned that keeping honest with myself and simply accepting my own brand of weird is the best route to take. Today I do not have to "fake the funk" I am honest with myself and others as a rule. Besides what other people think of me is none of my business...!

2. What led to the rise of white supremacism in the U.S?

The United States has always been white supremacist. It was founded on and built by slavery, and when that was ended it instituted Jim Crow, Which was only outlawed in 1954, and not really stopped to the extent that it was, ever. De jure Segregation has been abolished, not not in practice until maybe 1975. So the period in which it was bad form to be expressly racist has been very short.The open manifestation of white supremacy, which has always been there, I think began with the election of Obama, which brought the rats out from the woodwork to attack him with preposterous birtherism and other insults created by the outrage at a black man occupying what is clearly a white man's position. Trump, racist to the core, not only fanned that himself, but he has normalized and legitimated egregious expressions of racism and white supremacy, for example, by refusing to really condemn the alt right marchers and murders in Charlottesville, and many others, and in his racist war on the border.

3. What led to the rise of Second Amendment sanctuaries?

Oh! Simply firearm organisations sitting on their bums instead of helping firearm owners fight gun control. Without leadership and direction firearm owners have floundered in trying to figure out what to them is the unconventional tactics of propaganda used by gun control. Thus laws have been introduced and are now being passed at an alarming rate. 67 new laws last year and 280 since Sandy Hook not one was challenged and stopped by firearm organisations. No preventative action is planned or carried out by firearm organisations who do not want to fight and know nothing about how to.What that leaves is civil disobedience because no alternatives are on offer as firearm organisations resist helping firearm owners win this fight with more and more intensity. What led to the rise of Second Amendment sanctuaries?

4. What quarterback led the largest comeback in NFL history?

Buffalo quarterback Frank Reich got hot, leading the biggest comeback in NFL history by throwing for four second-half touchdowns

5. What led to your love of frogs?

Being borne, I guess. I have loved frogs (and turtles, lizards, salamanders, snakes and a whole bunch of other things) as long as I can remember

6. What events led to the Vietnam War?

I guess Russian nuclear weapons, please check with Wikipedia

7. What does "should have led with this" mean?

It means that you missed the opportunity "to lead with" (i.e., to bring forth first) an argument that would have secured your success in a debate. By allowing your best point to fall to a secondary or tertiary position, it lost its power to persuade.

8. What led Beirut to become the capital of Lebanon?

Prince Fakhr din 2After the collapse and the fall of the last remnants castles of crusaders in the east .. The relation between Lebanon and Europe was definitely cut and passed thru Egypt via their Italian partners in Venice and Genoa. Until Prince fakhr Din decided to improve his country and started to establish relation with the European and had strong one after he fled the ottoman when they attacked him and fled to Tuscany during Medici reign then were received in Sicily when it was part of Aragon crown . . At that time Sidon and Tripoli were the most important cities in the Lebanese coast. After he retured back to Lebanon, he started to give special importance for Beirut and its port and built a castle to defend it against the pirates .. Bit by bit Beirut started to grow up and it reached its peak during the 19th century when its inhabitants reached 90. 000 and the ottoman gave the permission to the French to build a modern Port .. Few decades later Lebanon became a French mandatory and Beirut was established as the capital of Lebanon switched from Baabda the capital of Moutasarifyeh Mount of Lebanon ..During the long history of Lebanon back to Phoenician era . . Beirut only knew a flourished era when it became the law capital during Roman era .. Cities like Biblos Tripoli Sidon and Tyr played significant roles during the long history of Lebanon

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Design and Analysis of Constant Current Driving Circuit for LED Display Screen
1. IntroductionLED display screen is a new type of information display media developed rapidly in the world in the late 1980s. It uses dot matrix modules or pixel units composed of light-emitting diodes to form a large-area display screen. It has the characteristics of high reliability, long service life, strong environmental adaptability, high performance price ratio and low cost, It has been widely used in the field of information display.LED display screen mainly includes LED array, driving circuit, control system, transmission interface and corresponding application software. The design of driving circuit plays a very important role in the display effect, production cost and system operation performance of LED display screen. Therefore, it is necessary to design a control drive circuit which can not only meet the requirements of control drive, but also use fewer devices and low cost. This paper analyzes the design of conventional driving circuit, and puts forward the design method of constant current driving circuit.2. Design of conventional driving circuit of LED display screenThe design of LED display driving circuit, combined with the control system used, is usually divided into two categories: dynamic scanning driving and static latch driving. The following analyzes the design of dynamic scanning driving circuit as an example:The dynamic scanning driving mode refers to that n rows of light-emitting diodes such as 4 rows, 8 rows and 16 rows on the display screen share a set of column driving registers. Through the time-sharing work of the row driving tube, the lighting time of each row of LED accounts for 1 / N of the total time. As long as the refresh rate of each row is greater than 50Hz and the visual persistence effect of human eyes is used, people can see a complete text or picture.The design of conventional driving circuit generally uses serial in and parallel out general integrated circuit chips such as 74HC595 or mc14094 as column data latch, 8050 and other low-power n PN triodes as column drive, and Darlington triode TIP127 as row scanning tube. The circuit is shown in Figure 1.Such as monochrome dot matrix, 16 lines & times; If 64 is listed as a basic unit, 8 74HC595, 64 8050 and 16 line scan tubes are required. Its working principle is that eight 74HC595 are connected in stages and share a serial clock CLK and data latch signal str. When the data to be displayed in the first row passes through 8 & times; 8 = all 64 CLK clocks will be moved into 74HC595. At this time, a data latch signal str will be generated to lock the data in the subsequent latch of 74HC595, and the 8050 corresponding to each output bit will be saturated on or off; At the same time, the line scanning control circuit generates a signal to turn on the first line of scanning tube, which is equivalent to that the positive ends of the first line of LED are connected to the high level. Obviously, the lighting of the first line of LED tube depends on the signal locked in 74HC595; While the first row of LED tubes are lit, move the data to be displayed in the second row in 74HC595, then lock it, and at the same time, the row scanning control circuit closes the first row of scanning tubes and turns on the second row to light up the second row of LED tubes. By analogy, when the sixteenth line is scanned and then returned to the first line, as long as the scanning speed is high enough, a complete text or image can be formed. Its working sequence is shown in Figure 2.Fig. 2 working sequence diagram3. Defects of conventional driving circuit(1) when a row of driving tubes is effective, the lighting current of all led corresponding to the row will flow through the row driving scanning tube, and the number of lighting LED tubes in a row will change continuously with the text or graphics to be displayed. Therefore, the current flowing in the row scanning tube will change greatly, which will change the tube voltage drop;(2) the change of current caused by the number of LED tubes lit will also affect the fluctuation of power supply voltage, which will affect the voltage at both ends of the first row of LED tubes, make it fluctuate with different display words or graphics, and affect the brightness uniformity of the whole display screen.
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