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LED 'fireflies' light up Tokyo river

LED 'fireflies' light up Tokyo river

TOKYO, Japan - Photo shows Tokyo Sky Tree in Tokyo's Taito Ward towering over the Sumida River, with its surface lit up in blue by 100,000 light-emitting diode bulbs, mimicking fireflies, during an event called "Tokyo Firefly" on the night of May 25, 2013. Participants bought LED bulbs measuring 8.5 centimeters in diameter, each containing a solar panel and a rechargeable battery, and threw them into the river. The bulbs were collected by fishermen using a net downstream for reuse.

  •  
'LED fireflies' light up Tokyo river

'LED fireflies' light up Tokyo river

TOKYO, Japan - Photo shows Tokyo Sky Tree in Tokyo's Taito Ward towering over the Sumida River, with its surface lit up in blue by 100,000 bulbs containing light-emitting diodes, mimicking fireflies, during an event called ''Tokyo Firefly'' on May 6, 2012. Participants bought bulbs measuring 8.5 centimeters in diameter, each containing an LED charged with solar power, and threw them into the river. The bulbs were collected by the organizers using a net downstream.

  •  
'LED fireflies' light up Tokyo river

'LED fireflies' light up Tokyo river

TOKYO, Japan - Photo shows Tokyo Sky Tree in Tokyo's Taito Ward towering over the Sumida River, with its surface lit up in blue by 100,000 bulbs containing light-emitting diodes, mimicking fireflies, during an event called ''Tokyo Firefly'' on May 6, 2012. Participants bought bulbs measuring 8.5 centimeters in diameter, each containing an LED charged with solar power, and threw them into the river. The bulbs were collected by the organizers using a net downstream.

  •  
'LED fireflies' light up Tokyo river

'LED fireflies' light up Tokyo river

TOKYO, Japan - Photo taken from a Kyodo News helicopter shows the Sumida River in Tokyo's Taito Ward with its surface lit up in blue by 100,000 bulbs containing light-emitting diodes, mimicking fireflies, during an event called ''Tokyo Firefly'' on May 6, 2012. Participants bought bulbs measuring 8.5 centimeters in diameter, each containing an LED charged with solar power, and threw them into the river. The bulbs were collected by the organizers using a net downstream.

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"Milky Way" appears on river in Osaka

"Milky Way" appears on river in Osaka

Around 40,000 plastic balls, each measuring 8.5 centimeters in diameter and containing blue light-emitting diodes charged by solar power, float for one kilometer on the Okawa River in Osaka, western Japan, on July 7, 2016, imitating the Milky Way to celebrate the annual "Tanabata" Star Festival the same day. Photo was taken with a 23-second exposure. (Kyodo) ==Kyodo

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"Milky Way" appears on river in Osaka

"Milky Way" appears on river in Osaka

Around 50,000 plastic balls, each measuring 8.5 centimeters in diameter and containing blue light-emitting diodes and batteries charged by solar power, float on the Okawa River in Osaka, western Japan, on July 7, 2015, imitating the Milky Way to celebrate the annual "tanabata" Star Festival the same day. Photo was taken with a 30-second exposure. (Kyodo) ==Kyodo

  •  
"Milky Way" appears on river in Osaka

"Milky Way" appears on river in Osaka

Around 50,000 plastic balls, each measuring 8.5 centimeters in diameter and containing blue light-emitting diodes and batteries charged by solar power, float on the Okawa River in Osaka, western Japan, on July 7, 2015, imitating the Milky Way to celebrate the annual "tanabata" Star Festival the same day. Photo was taken with a 35-second exposure. (Kyodo) ==Kyodo

  •  
"Milky Way" appears on river in Osaka

"Milky Way" appears on river in Osaka

Around 40,000 plastic balls, each measuring 8.5 centimeters in diameter and containing blue light-emitting diodes charged by solar power, float for one kilometer on the Okawa River in Osaka, western Japan, on July 7, 2016, imitating the Milky Way to celebrate the annual "Tanabata" Star Festival the same day. Photo was taken with a 56-second exposure. (Kyodo) ==Kyodo

  •  
"Milky Way" appears on river in Osaka

"Milky Way" appears on river in Osaka

Around 50,000 plastic balls, each measuring 8.5 centimeters in diameter and containing blue light-emitting diodes and batteries charged by solar power, float on the Okawa River in Osaka, western Japan, on July 7, 2010, imitating the Milky Way to celebrate the annual "tanabata" Star Festival the same day. Photo was taken with a 30-second exposure. (Kyodo) ==Kyodo

  •  
"Milky Way" appears on river in Osaka

"Milky Way" appears on river in Osaka

Around 50,000 plastic balls, each measuring 8.5 centimeters in diameter and containing blue light-emitting diodes and batteries charged by solar power, float on the Okawa River in Osaka, western Japan, on July 7, 2010, imitating the Milky Way to celebrate the annual "tanabata" Star Festival the same day. Photo was taken with a 35-second exposure. (Kyodo) ==Kyodo

  •  
'LED fireflies' light up Tokyo river

'LED fireflies' light up Tokyo river

TOKYO, Japan - Photo shows Tokyo Sky Tree in Tokyo's Taito Ward towering over the Sumida River, with its surface lit up in blue by 100,000 bulbs containing light-emitting diodes, mimicking fireflies, during an event called ''Tokyo Firefly'' on May 6, 2012. Participants bought bulbs measuring 8.5 centimeters in diameter, each containing an LED charged with solar power, and threw them into the river. The bulbs were collected by the organizers using a net downstream. (Kyodo)

  •  
'LED fireflies' light up Tokyo river

'LED fireflies' light up Tokyo river

TOKYO, Japan - Photo taken from a Kyodo News helicopter shows the Sumida River in Tokyo's Taito Ward with its surface lit up in blue by 100,000 bulbs containing light-emitting diodes, mimicking fireflies, during an event called ''Tokyo Firefly'' on May 6, 2012. Participants bought bulbs measuring 8.5 centimeters in diameter, each containing an LED charged with solar power, and threw them into the river. The bulbs were collected by the organizers using a net downstream. (Kyodo)

  •  
'LED fireflies' light up Tokyo river

'LED fireflies' light up Tokyo river

TOKYO, Japan - Photo shows Tokyo Sky Tree in Tokyo's Taito Ward towering over the Sumida River, with its surface lit up in blue by 100,000 bulbs containing light-emitting diodes, mimicking fireflies, during an event called ''Tokyo Firefly'' on May 6, 2012. Participants bought bulbs measuring 8.5 centimeters in diameter, each containing an LED charged with solar power, and threw them into the river. The bulbs were collected by the organizers using a net downstream. (Kyodo)

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