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história do diodo emissor de luz

Cordão de luzes LED azuis e brancas emaranhado sobre superfície escura, demonstrando a versatilidade decorativa dos diodos emissores de luz

Interesting facts

The Light Emitting Diode (LED) – A Revolution That Started Invisible

Paulo Nogueira 29/06/2025 at 19:56

Most commented

2

Mother and daughter build a 70 m² house with more than 8,000 discarded glass bottles and impress with their creativity; known as the Casa de Sal, the property is located on Itamaracá Island, in Pernambuco.

Andriely Medeiros de Araújo 11/06/2026 at 20:43

1

Interesting facts

Workers were opening a new road connection near the Marginal Tietê when they found, in the underground of the construction site, remnants of locomotives, wagons, and boilers from the 19th century linked to the forgotten history of Lapa.

Alisson Ficher 09/06/2026 at 15:58

3

Instead of burning or burying old tires, an American city is transforming about 2,000 of them into the street itself, paving its first sections with a quieter and more durable rubber asphalt.

Bruno Teles 09/06/2026 at 20:50

1

Interesting facts

China transforms desert-devastated area into the world’s largest artificial forest, planting trees for 60 years, blocking sand that reached Beijing, and creating a “green lung” of 92,000 hectares in a region once considered lost.

Alisson Ficher 13/06/2026 at 15:46

2

Interesting facts

Greek island offers free housing for volunteers, but there’s a condition: you need to take care of rescued cats.

Romário Pereira de Carvalho 09/06/2026 at 14:38

10

Engineers want to carve through Africa with a giant canal to bring water from the world’s second-largest river to a dying lake on the edge of the Sahara Desert that has already lost 90% of its water.

Bruno Teles 08/06/2026 at 17:23

1

Interesting facts

China has deployed snake-shaped robots to slide along power lines, where they have already inspected over 130 kilometers of cables using cameras and sensors to detect damaged wires, worn-out parts, and overheating.

Maria Heloisa Barbosa Borges 11/06/2026 at 22:59

Rare case in Minas Gerais draws attention after a sow gives birth to 46 live piglets in a delivery that surprised even those knowledgeable in pig farming.
15/06/2026 by Brigitte O'Connor

How terrible. What a cruel way to treat a sow,…
Taiwanese fishermen accepted offshore wind turbines in the name of clean energy, but now they say that old routes have disappeared, fish have decreased, and income has become uncertain on the coast.
15/06/2026 by God

More lies from the oil & gas industry.
Inventor creates a bicycle without springs and without hydraulic oil, using only powerful magnets in the suspension, and demonstrates in tests why the idea works, but still faces engineering risks and limitations.
15/06/2026 by teykesh

Thought about the idea 5yrs ago while toying with low…
With solar panels on one in three houses, Australia accelerates the home battery race, connecting more than 1,000 units per day and showing how families can store rooftop energy to avoid expensive electricity peaks at night.
15/06/2026 by Afred

CHILDREN OF THE LIGHT BENEFITS OF JOINING ILLUMINATI CLUB CHURCH…
Taiwanese fishermen accepted offshore wind turbines in the name of clean energy, but now they say that old routes have disappeared, fish have decreased, and income has become uncertain on the coast.
15/06/2026 by Ballsmaster G

Total dogshit propaganda
He transformed an abandoned plastic water tank into an underground house in the “hobbit hole” style, using only repurposed pallet wood, without heavy machinery or expensive labor.
14/06/2026 by Nicole

Where is the washroom and kitchen?
China transforms desert-devastated area into the world’s largest artificial forest, planting trees for 60 years, blocking sand that reached Beijing, and creating a “green lung” of 92,000 hectares in a region once considered lost.
14/06/2026 by Felix J. Tagabucba Jr.

This must be my number reason to appreciate this country…

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