【英语时差8,16】马丁路德金遇刺四十年后，平权之梦仍渺茫

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"We are here because destiny has drawn² us here," his youngest daughter, Reverend Bernice King said as she addressed a huge crowd at the spot where he was shot to death at the Lorraine Motel in Memphis, a day after rallying striking sanitation³ workers.

Thousands honored King's achievements but noted⁴ the need for more progress on equal rights.

King's son Martin Luther King III proposed to hold a march on Washington this year similar to the historic gathering⁵ his father headed in 1963.

That was when he delivered his landmark⁶ "I Have A Dream" speech that galvanized the civil rights movement with a message of equality and non-violence.

Five years later, at just 39, he was shot dead while he was standing⁷ on the balcony of the Lorraine Motel on April 4, 1968.

First hydrogen-battery powered plane flown in Spain: BoeingU.S. aircraft giant Boeing claimed on April 3 a world first in putting into the air a plane powered by a hydrogen-cell battery, a breakthrough that could herald⁸ a greener future for the industry.

"For the first time in the history of aviation, Boeing has flown a manned airplane that was powered by a hydrogen battery," Boeing chief technology officer John Tracy said.

Boeing staged three successful test flights of the 6.5-meter long plane in February and March at an airfield⁹ at Ocana, just south of Madrid.

The company said that although hydrogen fuel cells could be used to power small planes, it did not believe they could become the primary power source for large passenger aircraft.

Hydrogen power uses "fuel cells" that tap the energy produced from the chemical transformation¹⁰ of hydrogen and oxygen into water.

It holds the promise of a cleaner and renewable energy resource as it produces only harmless water vapor¹¹ as waste.

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