2. In 2008, the surface of X was changed after 20 years for better consistency and less retention of heat (primarily because of a thin upper layer). However it was controversial because of its similarity to the surface of Y. Name X and Y.
4. Their creations include KaZaa, the P2p file sharing software, and Joost, the P2P online TV software. However their most famous creation is something else. Name it.
8. This commonly used household item was first invented by the Egyptians, some 5000 years ago. It was a crude Mixture of wine and pumice. From the early Roman Empire until eighteenth century Europe and America, urine was a main ingredient in this item because the ammonia in it is an excellent cleaner. Ammonia is still a main ingredient in many modern versions of this item. What is this item?
19. The Mayor of Knoxville once proclaimed, "_________ work is impressioned hundreds of millions of times each week, and reaches all corners of the globe. He is arguably Knoxville's most persistent artist."
23. Environmental Pollution, Genetic manipulation, Accumulating excessive wealth, Inflicting poverty, Drug trafficking and consumption, Morally debatable experiments, Violation of Fundamental Rights of human nature. What are they?
29. Y's Hebrew name is Shabtai Zisel ben Avraham. He was born in St. Mary's Hospital on May 24, 1941, in Duluth, Minnesota. His paternal grandparents, Zigman and Anna Zimmerman, emigrated from Odessa in the Russian Empire to the United States following the antisemitic pogroms of 1905.His parents, Abram and Beatrice, were part of the area's small but close-knit Jewish community. He changed his birth name to what we are more familiar to.
