Erik Wallenberg (1915–1999) was a Swedish engineer. He is credited for inventing the Tetra Pak tetrahedron packaging in 1944.
Wallenberg had initially planned to join the Army as an officer, but fell ill during military training and had to abandon his plans. He was accepted at Karolinska Institutet medical school in Stockholm, but decided to move to Lund and try to enter the medical school at Lund University instead.
In 1943, waiting to get accepted at Lund University, Wallenberg got a job as lab assistant at Åkerlund & Rausing, a local firm manufacturing food packaging. When his manager got drafted in 1944, he became head of the research lab, aged 28.
The team had orders from the company owner Ruben Rausing to produce a viable packaging for milk that was cheap enough to compete with the current milk distribution system, based on loose milk sold in reusable glass bottles. The key to this was to use as little packaging material as possible. The research lab had tried and failed a number of different solutions. Finally, reportedly when ill with fever, Wallenberg got the idea of using one single sheet of paper rolled into a cylinder and folded from two different sides, creating a mathematical tetrahedron. The volume created only needed to be sealed in three places and the packages could be produced in one subsequent sequence from one roll of paper, using a minimum of material, with a minimum of waste.
William Bradley "Brad" Pitt (born December 18, 1963) is an American actor and film producer. Pitt has received four Academy Award nominations and five Golden Globe Award nominations, winning one Golden Globe. He has been described as one of the world's most attractive men, a label for which he has received substantial media attention.
Pitt first gained recognition as a cowboy hitchhiker in the road movie Thelma & Louise (1991). His first leading roles in big-budget productions came with A River Runs Through It (1992), Interview with the Vampire (1994), and Legends of the Fall (1994). In 1995, he gave critically acclaimed performances in the crime thriller Seven and the science fiction film 12 Monkeys, the latter earning him a Golden Globe Award for Best Supporting Actor and an Academy Award nomination. Four years later, Pitt starred in the cult hit Fight Club. He then starred in the major international hit Ocean's Eleven (2001) and its sequels, Ocean's Twelve (2004) and Ocean's Thirteen (2007). His greatest commercial successes have been Troy (2004) and Mr. & Mrs. Smith (2005). Pitt received his second and third Academy Award nominations for his leading performances in The Curious Case of Benjamin Button (2008) and Moneyball (2011). In addition, Pitt owns a production company, Plan B Entertainment, whose productions include The Departed (2006), which won the Academy Award for Best Picture, and Moneyball, which garnered a Best Picture nomination.