![Alexander BECHER | Bachelor of Engineering | Universität Siegen, Siegen | Department of Mechanical Engineering Alexander BECHER | Bachelor of Engineering | Universität Siegen, Siegen | Department of Mechanical Engineering](https://i1.rgstatic.net/ii/profile.image/695841677398016-1542912992703_Q512/Alexander-Becher-2.jpg)
Alexander BECHER | Bachelor of Engineering | Universität Siegen, Siegen | Department of Mechanical Engineering
![Voyagers stand in a hallway that connects terminal 5 to other terminals on Heathrow Airport in London, England, 1 August 2010. Photo: Alexander Becher Stock Photo - Alamy Voyagers stand in a hallway that connects terminal 5 to other terminals on Heathrow Airport in London, England, 1 August 2010. Photo: Alexander Becher Stock Photo - Alamy](https://c8.alamy.com/comp/D5B22Y/voyagers-stand-in-a-hallway-that-connects-terminal-5-to-other-terminals-D5B22Y.jpg)
Voyagers stand in a hallway that connects terminal 5 to other terminals on Heathrow Airport in London, England, 1 August 2010. Photo: Alexander Becher Stock Photo - Alamy
![Image of STEPHEN HAWKING (1942-2018). - English Theoretical Physicist. Photograph, 1999. Full Credit: - ullstein Bild - Alexander Becher / Granger -- All Rights Reserved From Granger - Historical Picture Archive Image of STEPHEN HAWKING (1942-2018). - English Theoretical Physicist. Photograph, 1999. Full Credit: - ullstein Bild - Alexander Becher / Granger -- All Rights Reserved From Granger - Historical Picture Archive](https://www.granger.com/wmpix/por2/00h/0639512-STEPHEN-HAWKING-1942-2018English-theoretical-physicist-Photograph-1999-Full-credit-ullstein-bild---Alexander-Becher--Granger----All-rights-reserved.jpg)
Image of STEPHEN HAWKING (1942-2018). - English Theoretical Physicist. Photograph, 1999. Full Credit: - ullstein Bild - Alexander Becher / Granger -- All Rights Reserved From Granger - Historical Picture Archive
![european pressphoto agency on Twitter: "Tesla and SpaceX CEO Elon Musk arrives for a statement at the construction site of the Tesla Giga Factory in Gruenheide near Berlin, Germany. 📷 epa-efe / european pressphoto agency on Twitter: "Tesla and SpaceX CEO Elon Musk arrives for a statement at the construction site of the Tesla Giga Factory in Gruenheide near Berlin, Germany. 📷 epa-efe /](https://pbs.twimg.com/media/Eg_jTBGXsAEtElv.jpg)
european pressphoto agency on Twitter: "Tesla and SpaceX CEO Elon Musk arrives for a statement at the construction site of the Tesla Giga Factory in Gruenheide near Berlin, Germany. 📷 epa-efe /
![dpa files) - A heavily armed and masked policeman guards the Federal Hall in New York, USA, 7 December 2005. Photo: Alexander Becher Stock Photo - Alamy dpa files) - A heavily armed and masked policeman guards the Federal Hall in New York, USA, 7 December 2005. Photo: Alexander Becher Stock Photo - Alamy](https://c8.alamy.com/comp/D3W1YG/dpa-files-a-heavily-armed-and-masked-policeman-guards-the-federal-D3W1YG.jpg)