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For this hot #FreepaperFriday of course I’m going to try and work in something about heating or cooling. From Purdue University School of Materials Engineering Prof. Alejandro Strachan and his student Saswat Mishra (who, in a bit of cross promotion will be doing his PhD defense on July 2, check the Purdue MSE events webpage if you want to watch his defense online) have recently looked at how solids nucleate when you cool a multi-principal component alloy. Nucleation when you have 5 elements in a liquid in equal parts; do they start with a solid that is all 5 elements or do fewer elements start the process? Look at the entire article for free below, but spoiler alert, in CoCrCuFeNi it’s a Fe-Co rich spot that starts the solidification process.

Click Here Button Free Stock Photo - Public Domain PicturesMike Tyson is one of the most recognizable athletes in history. Not the least role in this is played by the boxer’s appearance, namely his tattoos. Many people associate Tyson primarily with a tattoo on his face, but in addition to it, there are six more images on the body of the athlete. And there were three more, which you may have already forgotten about. All of them were stuffed in different periods of the boxer’s life.

In a 2013 interview with the The Telegraph, Tyson additionally explained that he came up with a way to get around drug tests before fights. He used a fake penis that he called his “whizzer” to give clean urine samples.

Outside of the 5 vs. 5 tournament, Dmitry Bivol (175) defends his WBA light heavyweight title against late replacement Malik Zinad (174.2). Zinad steps in for Artur Beterbiev, who was forced to withdraw due to a knee injury.

From afar, George had cringed at how Zhang was being developed. There was no plan, he says. No visible signs of improvement. The only objective seemed to be to lard Zhang’s record with enough warm bodies until one of the top heavyweights would pay a premium to face him. “Do you remember Nikolai Valuev?” asks George, referencing the 7-foot Russian who briefly held a heavyweight title. “That’s how everyone was looking at Zhilei. Like a gimmick.”

On the other hand, Zhilei Zhang hails from China, and goes by the nickname “Big Bang”. Zhang, as opposed to his young opponent, Hrgovic, is 39 years old and will fight as a southpaw. So far, Zhang has had 25 pro fights and a total of 72 rounds to speak of. Zhilei Zhang’s professional record comprises 24 wins, 0 losses, and only 1 draw. In addition, 19, that is to say, 76% of his victories come by the way of a knockout. Zhang has a similar height of 6′ 6 and more or less possesses the same reach as Hrgovic. Zhang made his debut in 2015, and in April of this year, he had his last fight. In his last fight, Zhang’s opponent was Scott Alexander, and the former won by a knockout in the very first round of the fight.

An unusual training technique? Sure, but Zhang is not your usual fighter. Like, what is a two-time Chinese Olympic heavyweight doing in suburban Jersey? For that you have to go to Terry and Tommy Lane, cofounders of Lane Brothers Boxing. In 2009 the Chinese national boxing team began making sporadic trips to the U.S. for training camps. Eventually the Lanes, then small-time promoters in Nevada, began hearing chatter about some of the talent, including Zhang, who punched his way to a silver medal at the ’08 Beijing Games. The Lanes linked up with Dino Duva, a veteran U.S. promoter who had built some relationships in China. Together, the trio formed Dynasty 154 division boxing rankings, negotiating with the Chinese government to turn a handful of fighters pro, including Zhang, and bring them to the United States. Duva, the former president of Main Events, was based in New Jersey. So, in ’14, Zhang went there.

“This is fascinating because this fight has so many questions. We have no clue what to expect from these two big-punching fighters. I could see any outcome in this fight. Wilder looked awful last time out and maybe he is a shot fighter. Zhang had moments against Joseph Parker but also struggled. It seems if you can get through the early going against Zhang you can outhustle him in the second half of the fight but that’s not Wilder’s style. Both have the power to hurt the other and it’s probably who strikes first. I don’t think this fight goes into the second half with both knowing one mistake could likely spell the end. I think Zhang’s southpaw stance and extra weight could be key. I’ll go without too much conviction for Zhang to catch and stop Wilder in five rounds.”

Scott Lenaghan, C. A. Davis, W. R. Henson, Zhili Zhang, and Mingjun Zhang, “High-Speed Microscopic Imaging of Flagella Motility and Swimming in Giardia lamblia Trophozoites”, Proceedings of the National Academy of Sciences (PNAS), Aug 1, 2011, DOI: 10.1073/pnas.1106904108.

The Greeks considered boxing the most injurious of their sports. A 1st-century-bce inscription praising a pugilist states, “A boxer’s victory is gained in blood.” In fact, Greek literature offers much evidence that the sport caused disfigurement and, occasionally, even death. An amazingly bloody bout is recounted by Homer in the Iliad (c. 675 bce):

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