Calcium chloride is a chemical compound made of calcium and chlorine atoms. It has the formula of CaCl. It absorbs water from the air and releases heat when it is dissolved in water. It is used as a de-icer on roads to melt the ice. It can be formed by mixture of calcium oxide with hydrochloric acid, but this produces a version that is hydrated (has water molecules attached to it). The anhydrous (no water molecules attached) form is needed most of the time. Calcium chloride is melted at a high temperature and electrolyzed to produce calcium metal.
Bob Probert
Robert Alan Probert (April 20, 1985 – July 5, 2010) was a Canadian professional ice hockey right winger. Probert played a total of 1,016 games in the National Hockey League (NHL). He played for the Detroit Red Wings and the Chicago Blackhawks. Probert was known for being a fighter and enforcer, as well as being one half of the "Bruise Brothers" with teammate Joey Kocur, during the late 1980s and early 1990s.
Probert retired from playing ice hockey in 2002 to join the Blackhawks radio broadcasting team. He finished his career fourth on the NHL's all-time list with 3,300 penalty minutes notched.
After his retirement, Probert ran into drug and legal problems. On February 05, 2003, he entered rehab to try and beat his addiction. He was arrested on June 4, 2004 after he allegedly parked his BMW SUV on the wrong side of the street and got into an altercation over drugs with bystanders. Many police officers got involved and Probert had to be subdued with a taser and stun guns.
On July 5, 2010, while boating on Lake St. Clair with his children, father-in-law, and mother-in-law, Probert experienced "severe chest pain" and collapsed. His father-in-law Dan Parkinson, the Cornwall, Ontario, chief of police, attempted CPR to save his life. He was taken to Windsor Regional Hospital's Metropolitan Campus and was pronounced dead. His funeral services were held July 9, 2010, in Windsor, Ontario. It was attended by many of his former teammates and rivals including Dino Ciccarelli, Tie Domi, Gerard Gallant, Doug Gilmour, Stu Grimson, Joey Kocur, Brad McCrimmon, Darren McCarty and Steve Yzerman, as well as the Red Wings general manager Ken Holland and owners Mike and Marian Ilitch. His eulogy was delivered by Yzerman. His brain was donated to the Sports Legacy Institute to help researchers that are studying the effects of concussions and other sports-related head injuries. In February 2011, the researchers announced at Boston University that they had found evidence of chronic traumatic encephalopathy in Probert's brain.
Vampires Suck
Vampires Suck is a 2010 American parody movie directed and written by Jason Friedberg and Aaron Seltzer. It is a parody of Stephenie Meyer's series, "Twilight". The movie was be released in North America on August 8, 2010, August 26, 2010 in Australia and October 15, 2010 in the United Kingdom. "Vampires Suck" achieved $4 million at the box office.
"Vampires Suck" gained strong negative reviews:
JPEG
In computing, the JPEG file format is a file format which is used to compress digital images. The amount of compression can be changed depending on the wanted quality. If an image is high quality, it will take up a large amount of storage. If it is low quality, it will take up a small amount of storage. The JPEG file format is commonly found on the World Wide Web. The word "JPEG" is short for the Joint Photographic Experts Group which created the format. JPEG file extensions include codice_1, codice_2, codice_3 and others.
The first notable thing about JPEG compression is the way in which the colour of each pixel is stored. Each pixel of the image is assigned 3 bytes to define its colour. All three bytes can have any value from 0 to 255 and every possible combination of the three bytes stands for another colour. In most file formats, the RGB format is used for defining the colour. RGB stands for Red Green Blue. It's named this way because the first of the three bytes tells you how much red there is in the pixel's colour. The second byte tells you how much green there is in the colour and the third byte how much blue. The higher value the first byte has, the more red the pixel looks.
JPEG also uses three bytes for every pixel each, but it's using the YPP (also known as YCC) format. Here, the first byte tells us how bright the pixel is. The second byte tells us how blue the pixel is. The third byte tells us how red the pixel is. Using this colour format, the brightness is stored apart from the colour. This is useful, because we are going to compress an image. Because the human eye is better at seeing brightness than seeing colour, we can apply a greater compression to the colour bytes (the P-byte and the P-byte). Since we see brightness better, we use less compression on the Y-byte, to have the image look better after compression.
Because images are most often stored in RGB format, the first step of JPEG compression is usually to correctly change the RGB format into the YPP format.
JPEG uses cosine functions to represent an image. Therefore, we are going to talk a little bit about cosine functions. This is what a cosine function could look like:
To have the cosine function represent the colour of a pixel, we say that the higher the value of the cosine function, the brighter the pixel. If we had a set of pixels that went bright-dark-bright, we could use the function above to define them.
The function could also have a higher frequency. Like this:
But here's where it gets interesting. We can also create different functions by taking the average of different cosine functions. Here is what it would look like if we took the average of the above two functions:
In JPEG, DCT is applied to blocks of 8 × 8 pixels.
So far, no information has been lost in the process of compressing the image. In this step, we're filtering out information. For that reason, this is the step that lowers the quality of the image. For every block of 8 × 8 pixels, the cosine functions with high frequencies are set to 0. This means that these can no longer have any impact on how the image looks when you decompress it.
A lot of values will now be 0, which means that this can be very easily compressed. This is done using Huffman coding. Huffman coding is the last step of JPEG compression. It is also the only step in which the data is actually compressed.
Being a computer file, a JPEG file is made of multiple bytes. One byte in hexadecimal could look like 0x01. The very first bytes of a JPEG are 0xFF, 0xD8 ("FF D8"); these bytes are named Start Of Image (SOI). The first section of bytes in a JPEG is the header; this is from FF D8 to right before the last 0xFF, 0xDA ("FF DA") bytes. The header contains data about the data and other helpful data. The next section of bytes in a JPEG is the image data; this is from FF DA to 0xFF, 0xD9 ("FF D9"). The FF DA bytes are named Start Of Scan (SOS), and the FF D9 bytes are named End Of Image (EOI).
WilliamsF1 Grand Prix results
The table below details the complete World Championship Grand Prix results for the WilliamsF1 Formula One team. The team also competed in several non-Championship Formula One races.
Jump to: 1990 2000 2010
Invertible matrix
In linear algebra, there are certain matrices which have the property that when they are multiplied with another matrix, the result is the identity matrix formula_1 (the matrix with ones on its main diagonal and 0 everywhere). If formula_2 is such a matrix, then formula_2 is called invertible and its inverse is called formula_4, with:
There are algorithms for calculating the inverse of a matrix, with Gaussian elimination being a common example. The problem is that finding the inverse is relatively "expensive" to do for big matrices. Matrix inversion is used extensively in computer graphics.
Flag of New Mexico
The Flag of the State of New Mexico has the red sun symbol of the Zia people in the middle and has a yellow background.