This file photo taken on September 11, 2012 shows US-Egyptian Nobel prize-winning scientist Ahmed Zewail addressing members of the constitution committee at the Shura council in Cairo. Nobel prize-winning Egyptian chemist Zewail, who served as a science and technology advisor to US President Barack Obama, died on August 2, 2016 in the United States at the age of 70, Egypt's presidency announced. / AFP PHOTO / KHALED DESOUKIKHALED DESOUKI/AFP/Getty Images

Uber CEO Travis Kalanick speaks to students during an interaction at the Indian Institute of Technology (IIT) campus in Mumbai, India, January 19, 2016. REUTERS/Danish Siddiqui

Uber CEO Travis Kalanick speaks to students during an interaction at the Indian Institute of Technology (IIT) campus in Mumbai, India, January 19, 2016. REUTERS/Danish Siddiqui

Ahmed Zewail, winner of the 1999 Nobel Prize for Chemistry, and wife, Dema Zewail, a public health physician, pose for photographers before a news conference at California Institute of Technology, October 1, 1999. REUTERS/Fred Prouser/File photo

A staff member demonstrates video capture on a 5G radio testbed achieving a peak throughput of 27.5 gigabits per second and latency as low as 2ms in Singapore on August 2, 2016. SingTel and Ericsson, the Swedish maker of wireless networking equipment, have teamed up to harness the potential of 5G technology in Southeast Asia. / AFP PHOTO / ROSLAN RAHMANROSLAN RAHMAN/AFP/Getty Images

A staff member demonstrates video streaming at the maximum 27.5 bigabits per second peak downlink throughput connecting to a 5G radio testbed in Singapore on August 2, 2016. SingTel and Ericsson, the Swedish maker of wireless networking equipment, have teamed up to harness the potential of 5G technology in Southeast Asia. / AFP PHOTO / ROSLAN RAHMANROSLAN RAHMAN/AFP/Getty Images

Ericsson engineers work on a 5G radio testbed booth during a demonstration at SingTel in Singapore on August 2, 2016. SingTel and Ericsson, the Swedish maker of wireless networking equipment, have teamed up to harness the potential of 5G technology in Southeast Asia. / AFP PHOTO / ROSLAN RAHMANROSLAN RAHMAN/AFP/Getty Images

BEVERLY HILLS, CA - AUGUST 01: In this handout photo provided by Discovery, Group President, Discovery Channel, Animal Planet & Science Channel, Rich Ross (L) and (L-R Front Row) Actors Michiel Huisman, Bug Hall, Robert Aramayo, executive producer on behalf of Raw Television Dimitri Doganis, bike fabricator Alex Wheeler, (L-R Back Row) actors Stephen Rider, Jessica Camacho, Gabe Luna and Annie Read of 'Harley and the Davidsons' speak onstage during the 'Discovery Channel' portion of the TCA Summer Event 2016 at The Beverly Hilton Hotel on August 1, 2016 in Beverly Hills, California. (Photo by Amanda Edwards/ Discovery via Getty Images)