Daniel Lewin | |
|---|---|
 | |
| Born | May 14, 1970 |
| Died | September 11, 2001 (aged 31) American Airlines Flight 11 above Massachusetts, U.S. |
| Cause of death | Stab wounds (September 11 attacks) |
| Burial place | Sharon Memorial Park Sharon, Massachusetts |
| Education | Technion – Israel Institute of Technology (BA, BS) Massachusetts Institute of Technology |
| Occupation | Entrepreneur |
| Spouse | Anne Lewin |
| Children | 2 |
| Military career | |
| Allegiance |  Israel |
| Service/ |  Sayeret Matkal |
| Rank | Captain |
Daniel Mark Lewin (Hebrew: דניאל "דני" מארק לוין; May 14, 1970 – September 11, 2001) was an American mathematician and entrepreneur who co-founded Akamai Technologies. A passenger on board American Airlines Flight 11, it is believed that Lewin was stabbed to death by Satam al-Suqami, one of the hijackers of that flight, and was the first victim of the September 11 attacks.[1][2][3]
YouTube Encyclopedic
-
1/5Views:1 644 6955 203 998347 8442 874 712152 039
-
Newton's 3 Laws, with a bicycle - Joshua Manley
-
Mathematicians Use Numbers Differently From The Rest of Us
-
Lec 3 | MIT 6.042J Mathematics for Computer Science, Fall 2010
-
Understanding Bernoulli's Equation
-
How Do You Show Bernoulli's Principle? | Visualizing Bernoulli's Principle | #Shorts
Transcription
Have you ever noticed that it's harder to start pedaling your bicycle than it is to ride at a constant speed? Or wondered what causes your bicycle to move? Or thought about why it goes forward instead of backwards or sideways? Perhaps not, and you wouldn't be alone. It wasn't until the 17th century that Isaac Newton described the fundamental laws of motion and we understood the answer to these three questions. What Newton recognized was that things tend to keep on doing what they are already doing. So when your bicycle is stopped, it stays stopped, and when it is going, it stays going. Objects in motion tend to stay in motion and objects at rest tend to stay at rest. That's Newton's First Law. Physicists call it the Law of Inertia, which is a fancy way of saying that moving objects don't spontaneously speed up, slow down, or change direction. It is this inertia that you must overcome to get your bicycle moving. Now you know that you have to overcome inertia to get your bicycle moving, but what is it that allows you to overcome it? Well, the answer is explained by Newton's Second Law. In mathematical terms, Newton's Second Law says that force is the product of mass times acceleration. To cause an object to accelerate, or speed up, a force must be applied. The more force you apply, the quicker you accelerate. And the more mass your bicycle has, and the more mass you have too, the more force you have to use to accelerate at the same rate. This is why it would be really difficult to pedal a 10,000 pound bicycle. And it is this force, which is applied by your legs pushing down on the pedals, that allows you to overcome Newton's Law of Inertia. The harder you push down on the pedals, the bigger the force and the quicker you accelerate. Now on to the final question: When you do get your bike moving, why does it go forward? According to Newton's Third Law, for every action, there is an equal and opposite reaction. To understand this, think about what happens when you drop a bouncy ball. As the bouncy ball hits the floor, it causes a downward force on the floor. This is the action. The floor reacts by pushing on the ball with the same force, but in the opposite direction, upward, causing it to bounce back up to you. Together, the floor and the ball form what's called the action/reaction pair. When it comes to your bicycle, it is a little more complicated. As your bicycle wheels spin clockwise, the parts of each tire touching the ground push backwards against the Earth: the actions. The ground pushes forward with the same force against each of your tires: the reactions. Since you have two bicycle tires, each one forms an action/reaction pair with the ground. And since the Earth is really, really, really big compared to your bicycle, it barely moves from the force caused by your bicycle tires pushing backwards, but you are propelled forward.
Early life
Lewin was born May 14, 1970, in Denver, Colorado, and moved to Israel with his parents at age 14, where he remained for the rest of his childhood.[4]
Career
Lewin served for four years in the Israel Defense Forces (IDF) as an officer in Sayeret Matkal, one of the IDF's special forces units.[4] Lewin earned the rank of captain.[2]
He attended the Technion – Israel Institute of Technology in Haifa while simultaneously working at IBM's research laboratory in the city. While at IBM, he was responsible for developing the Genesys system, a processor verification tool that is used widely within IBM and in other companies such as Advanced Micro Devices and SGS-Thomson.[5]
Upon receiving a Bachelor of Arts and a Bachelor of Science, summa cum laude, in 1995, he traveled to Cambridge, Massachusetts, to begin graduate studies toward a Ph.D at the Massachusetts Institute of Technology (MIT) in 1996. While there, he and his advisor, Professor F. Thomson Leighton, came up with consistent hashing, an innovative algorithm for optimizing internet traffic.[6] These algorithms became the basis for Akamai Technologies, which the two founded in 1998.[5] Lewin was the company's chief technology officer and a board member, and achieved great wealth during the height of the internet boom.[7]
Death and legacy
Lewin was reportedly stabbed aboard American Airlines Flight 11 as it was hijacked during the September 11 attacks. He was traveling that day for a business meeting in Los Angeles.[8] A 2001 FAA memo suggests he may have been stabbed by Satam al-Suqami after attempting to foil the hijacking. According to the memo, Lewin was seated in business class in seat 9B, close to hijackers Mohamed Atta, Abdulaziz al-Omari and al-Suqami. It was first reported that he had been shot by al-Suqami, although the final draft of the memo dropped all references to gunfire.[9]
According to the 9/11 Commission Report, Lewin was stabbed by one of the hijackers, probably Satam al-Suqami, who was seated directly behind him.[10] Flight attendants on the plane who contacted airline officials from the plane reported that Lewin's throat was slashed, probably by the terrorist sitting behind him.[11]
The 9/11 Commission speculated that Lewin, who had served four years in the Israeli military, may have attempted to confront Atta or Omari, who had been seated in front of him, not knowing that al-Suqami was sitting just behind him.[10] Lewin was identified as the first victim of the September 11 attacks.[2][3][12]
Lewin, who was 31, was survived by his wife Anne and his two sons, Eitan and Itamar, who were aged five and eight at the time of the September 2001 attacks.[4][5][12][13]
In July 2004, it was reported that Lewin's recovered remains had been identified.[14]
After his death, the intersection of Main and Vassar Streets in Cambridge, Massachusetts, was renamed Danny Lewin Square in his honor.[13] The award given to the best student-written paper at the ACM Symposium on Theory of Computing (STOC) was also named the Danny Lewin Best Student Paper Award, in his honor.[6] In 2011, on the tenth anniversary of his death, Lewin's contributions to the internet were memorialized by friends and colleagues.[15][16]
At the National 9/11 Memorial, Lewin is memorialized at the North Pool, on Panel N-75.[17]
Lewin is the subject of the 2013 biography No Better Time: The Brief, Remarkable Life of Danny Lewin, the Genius Who Transformed the Internet by Molly Knight Raskin.[18] According to Raskin, "Because of Akamai, almost every major news site remained up and running [on September 11], a feat that proved everything Danny promised to be possible".[8]
Awards
- 1995 – Technion named him the year's Outstanding Student in Computer Engineering.
- 1998 – Morris Joseph Levin Award for Best Masterworks Thesis Presentation at MIT.
References
- ^ Leopold, Todd (September 11, 2013). "The legacy of Danny Lewin, the first man to die on 9/11". CNN.
- ^ a b c Sisk, Richard; el-Faizy, Monique (July 24, 2004). "Ex-Israeli commando tried to halt unfolding hijacking". Daily News. New York City. Archived from the original on October 6, 2013. Retrieved May 16, 2021.
- ^ a b Liel Leibovitz (11 September 2013). "Remembering Tech Titan Danny Lewin, the Fighting Genius on Flight 11". Tablet.
- ^ a b c Weiss, Efrat (12 September 2001). "Daniel was a very special man". Yedioth Ahronoth (in Hebrew). Ynet!. Retrieved 12 September 2011.
- ^ a b c "Akamai Remembers Danny Lewin". Akamai Technologies. 2006. Archived from the original on October 26, 2006. Retrieved September 12, 2011.
- ^ a b Leighton, Tom (2002). "Remarks made by Tom Leighton to commemorate the naming of the STOC Best Student Paper Award in honor of the late Daniel Lewin". University of Nevada, Las Vegas. Retrieved September 12, 2011.
- ^ דני לוין, מייסד אקאמאי ובוגר הטכניון, ברשימת העשירים הצעירים (in Hebrew). Globes. 3 April 2001. Archived from the original on November 15, 2011. Retrieved 12 September 2011.
- ^ a b Raskin, Molly Knight (September 11, 2015). "The First Victim of Sept. 11". Slate. Retrieved September 23, 2023.
- ^ "UPI hears..." United Press International. March 6, 2002. Retrieved September 12, 2011.
- ^ a b "1. WE HAVE SOME PLANES". 9/11 Commission Report. 9/11 Commission. July 22, 2004. Archived from the original on September 1, 2004. Retrieved September 19, 2021 – via National Archives and Records Administration.
- ^ Nickisch, Curt (8 September 2011). "Cambridge Co. Keeps Founder's Spirit Alive After 9/11". WBUR. Retrieved September 12, 2011.
- ^ a b Jager, Ron (September 8, 2011). "Danny Lewin: The First Victim Of 9/11". 5TJT. Archived from the original on October 17, 2011. Retrieved September 19, 2021.
- ^ a b "Volume 122, Issue 47". The Tech. MIT. Archived from the original on 15 November 2011. Retrieved 12 September 2011.
- ^ Dan, Uri (July 11, 2004). "REMAINS OF FIRST 9/11 VICTIM ARE ID'D". New York Post. Archived from the original on September 15, 2021. Retrieved September 18, 2021.
- ^ Sitaraman, Ramesh (September 11, 2011). "9/11: A Personal Remembrance". University of Massachusetts Amherst.
- ^ Bray, Hiawatha Bray (September 4, 2011). "A lost spirit still inspires". The Boston Globe.
- ^ "South Pool: Panel N-75 - Daniel M. Lewin". National September 11 Memorial & Museum. Archived from the original on July 27, 2013. Retrieved October 29, 2011.
- ^ Raskin, Molly Knight (27 June 2017). No Better Time. Da Capo Press. ISBN 9780306821677. Retrieved February 18, 2023.
External links
- Consistent hashing for relieving hot spots on the world wide web, Akamai Technologies.
- Daniel was an inspiration, Ynetnews.
- The Akamai Network: A Platform for High-Performance Internet Applications, Erik Nygren, Ramesh K. Sitaraman, and Jennifer Sun, ACM SIGOPS Operating Systems Review, Vol. 44, No.3, July 2010.
- Daniel Mark Lewin at Find a Grave
| International | |
|---|---|
| National | |
| Academics | |
This page was last edited on 24 May 2024, at 00:54