Macroscopic – kinetic energy usually not conserved Converted into heat Converted into distortion or damage Demo energy lost to heat by smashing two steel balls together 03-08 Elastic and Inelastic Collisions Elastic – kinetic energy conserved Inelastic – kinetic energy not conserved Memory allocation. Problems with memory allocation. Memory Leaks, Premature Frees, Memory Smashing, Double Frees. Execution Profiling. Textbook No official Textbook. Class Notes Selected Documents and Tutorials available in the Internet Recommended Textbook. Advanced Programming in the UNIX Environment, Addison-Wesley, 1992. To prevent choking up on hand tools and smashing fingers, workers must be careful not to choke up on hand tools, ensure correct hand placement, and place hands further back on handles. Converted into heat Converted into distortion or damage 𝐹Δ𝑡=𝑚𝑣𝑓−𝑚𝑣0 Demo energy lost to heat by smashing two steel balls together 04-03 Elastic and Inelastic Collisions Elastic – kinetic energy conserved Inelastic – kinetic energy not conserved This is like smashing the top off a shaken champagne bottle, rather than teasing out the cork. Explosions of enormous power can result, blasting ash high into the atmosphere and sending clouds of burning gas and rock shooting down the sides of mountains. These nuee ardentes incinerate everything in their path. A. Synthetic Element – human-made, not formed in nature. B. Natural Element – forms by natural processes Synthetic Elements C. Synthetic elements are made by smashing atoms together in a particle accelerator. Helpful Hints… Convergent = “Connecting” boundaries May work like a trash compactor smashing rock. Rock goes crunches up to make folded mountains. Rock goes down “under” @ subduction zone. Transform Boundaries A plate boundary where two plates move past each other in opposite direction. How is the rock broken at Transform Boundaries? ¯‚Å&­¾CUÜÛä*ÉÑ~ÞÊØóËõ”*“ å›LÊá~ÞÊØõÛÕ”¬éEQÒ$Š’&Q”4‰¢¤I eÓdQ :µtððS®þÙ «2¸GVRæh•íR“Þ K«%É édº¹ÉbùæH¶q¥!~-ÄVNÓb D™×Ÿeì-IG©0¹ ¢Zg0oNr”¤löéMÊt.ÝÛ¤‰½Ü¸× üÒr;3-+ÜŠŽ b¤ ÑÁ•d 2 K÷6™;±26¼x ® &66Î eå.â› 6½pg—&ÏÖÍÝÞ¤Ïaù½…MžLSe¥fÚa¾ãØyHT¡É “ó.ò†é’È9ÕM.Îî. Buffer overflow and stack smashing attacks Principles of application software security Buffer overflows One of the most common vulnerabilities in software Particularly problematic when present in system libraries and other code that runs with high execution privileges. th year of reign) the Altars are torn down smashing the asperahpoles and Crushing the idols to powder Reforms in temple when Josiah was 26 years old In the 18th year of Josiah’s reign, when he was 26 years old, he repaired the temple of the Lord.