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Humaitá

Os testes de navegação realizados pelo submarino Humaitá no sul do Rio de Janeiro trouxeram grandes avanços para a verificação dos sistemas. A etapa de testagem da propulsão no mar precede a imersão dinâmica e verifica a segurança na navegação.

Humaitá Submarine Conducts Navigation Tests to Verify Propulsion at Sea, Along With Crew Training

Ruth Rodrigues 23/12/2022 at 10:26

Most commented

14

Science and Technology

The end of Nokia: the brand that was the cellphone of an entire generation has ended its smartphones, left Brazil, and today survives only in basic phones in India while seeking a new partner.

Noel Budeguer 02/06/2026 at 07:02

6

Interesting facts

Workers were opening a modern road in Dover when they found, 6 meters below the asphalt, a 3,500-year-old boat made of stitched oak and plant fibers.

Flavia Marinho 05/06/2026 at 20:50

3

Interesting facts

Dissatisfied with seeing people sleeping on the street, a man named Ryan Donais started building small mobile homes so that homeless people can escape the cold, each equipped with a bed, running water, electricity, and heating.

Maria Heloisa Barbosa Borges 03/06/2026 at 23:35

2

Consumers eat six times more chicken than in the 1960s, global meat supply quadruples in 60 years, and FAO report reveals the invisible cost on the plate: livestock could drive 80% of the increase in agricultural emissions over the next decade.

Carla Teles 06/06/2026 at 18:29

2

Science and Technology

An Indonesian fisherman pulls a mysterious object from the sea and discovers that it is a Chinese underwater monitoring system, part of the so-called Underwater Great Wall that Beijing uses to track submarines and unmanned vehicles in strategic straits of the region.

Maria Heloisa Barbosa Borges 01/06/2026 at 21:47

2

Science and Technology

Two 17-year-old Kenyans use coconut shells, corn cobs, and recycled materials to create an exhaust filter that reduces 93.3% of pollutant particles and wins an environmental award in Africa.

Romário Pereira de Carvalho 04/06/2026 at 11:41

2

Science and Technology

Man built a 5-acre lake to raise bass, but after 1,000 days the project turned into a wildlife sanctuary with eagles, deer, ducks, owls, and live cameras that transformed the farm into a biodiversity laboratory.

Carla Teles 02/06/2026 at 18:42

Couple sells pharmaceutical company, returns to the family’s old farm in Serra da Canastra, and transforms 230 liters of milk per day into sought-after artisanal cheeses, while preserving the house built by the father, decades-old wood, and memories of three generations.
08/06/2026 by NANFuka BEATRICE

Thanks alot. for sharing such awonderful true to life story.
Man built a 5-acre lake to raise bass, but after 1,000 days the project turned into a wildlife sanctuary with eagles, deer, ducks, owls, and live cameras that transformed the farm into a biodiversity laboratory.
08/06/2026 by Uvette

I think this is a wonderful idea. I wish more…
Workers were opening a modern road in Dover when they found, 6 meters below the asphalt, a 3,500-year-old boat made of stitched oak and plant fibers.
08/06/2026 by Nora

People were very clever then I think and they were…
Using high-resolution satellite images, archaeologists rediscovered the Egyptian city of Imet, buried for centuries in the Nile Delta, revealing rare multi-story houses, granaries, and a sacred road linked to the cobra goddess Wadjet, from about 2,400 years ago.
08/06/2026 by Sickened !!!

That's more gold and ancient artifacts for the colonisers to…
Workers were opening a modern road in Dover when they found, 6 meters below the asphalt, a 3,500-year-old boat made of stitched oak and plant fibers.
08/06/2026 by Steven Rodriguez

Problably they treated the wood with some kind of home…
Using high-resolution satellite images, archaeologists rediscovered the Egyptian city of Imet, buried for centuries in the Nile Delta, revealing rare multi-story houses, granaries, and a sacred road linked to the cobra goddess Wadjet, from about 2,400 years ago.
08/06/2026 by Bassem El Masri

Fascinating. The Egyptian cities are missing in the architecture history.…
Workers were opening a modern road in Dover when they found, 6 meters below the asphalt, a 3,500-year-old boat made of stitched oak and plant fibers.
08/06/2026 by Divine Kubiat

Is it that there are woods that cannot decay even…

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