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Filtros UV

Células solares, Filtros UV, Resíduos de cebola

Science and Technology

Onion Skin Waste Creates Shield For Solar Cells and Blocks 99.9% Of UV Rays

Romário Pereira de Carvalho 20/03/2025 at 23:43

Most commented

5

Brazil will harvest a record crop of up to 357 million tons of grains, but it does not have the capacity to store a large part of it. The storage deficit has reached the highest level in history and is equivalent to almost the entire production of Argentina.

Maria Heloisa Barbosa Borges 28/05/2026 at 01:10

3

Science and Technology

Four times faster than the Concorde, capable of taking passengers from New York to London in less than an hour at Mach 5.5, and with an engine that switches from turbojet to ramjet mid-flight at Mach 3.5, the Hermeus Quarterhorse went from paper to its first flight in just 19 months.

Valdemar Medeiros 29/05/2026 at 16:55

3

Science and Technology

SpaceX will dock a $843 million vehicle to the International Space Station to push a nearly 420-ton laboratory against the atmosphere and make the debris fall in a controlled manner into the ocean.

Ana Alice 29/05/2026 at 00:02

2

Science and Technology

China opens the world’s first school where more than 100 humanoid robots from different brands will study together, each movement will be repeated up to 600 times a day and the data will feed a collective brain that will teach all the robots of the future.

Maria Heloisa Barbosa Borges 28/05/2026 at 12:14

2

Cambodia has started digging a nearly 180-kilometer canal to connect the Mekong River directly to the sea and reduce its dependence on the ports of neighboring Vietnam.

Douglas Avila 31/05/2026 at 20:15

2

Science and Technology

Starlink, by Elon Musk, wants to transform its satellites into a cellular operator capable of covering any point on the planet, but the three American giants in the sector, AT&T, T-Mobile, and Verizon, rejected the partnership and joined forces for the first time to try to contain the company’s advance.

Bruno Teles 29/05/2026 at 16:41

2

Science and Technology

Scientists considered detonating 213 nuclear bombs in the Sahara to create an artificial sea the size of El Salvador, with each explosion being a hundred times more powerful than the Hiroshima bomb, and the goal was to generate more energy than Egypt’s largest hydroelectric plant.

Maria Heloisa Barbosa Borges 28/05/2026 at 01:08

Prohibiting Cell Phones at Work?! See How Far Employers’ Power Over Employees Goes
03/06/2026 by กระดาษสติ๊กเกอร์ความร้อน

... [Trackback] [...] Find More Information here on that Topic:…
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.
03/06/2026 by Vidyasagar

Keep it up! Smart phones not good for health. Society…
Prohibiting Cell Phones at Work?! See How Far Employers’ Power Over Employees Goes
03/06/2026 by แทงบอลไทย

... [Trackback] [...] Here you can find 58056 more Info…
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.
03/06/2026 by Don Smith

We are so adapted to taking these resources away it…
A silent boat powered solely by solar energy sits in the middle of the planet’s most polluted rivers, swallowing up to 50 tons of trash per day, and it does this alone, without fuel and without stopping, before the plastic reaches the ocean.
03/06/2026 by Eric Saunderson

Every country should have at least one
Great Atlantic Sargassum Belt has ceased to be a climatic phenomenon and has become a biological system that feeds on itself, with 8,000 kilometers in length, 37 million tons of algae, and scientists confirm that it is now permanent.
03/06/2026 by Josean Terron

Messing with nature always works so well for humanity! Impulsive…
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.
03/06/2026 by Ojola isaac

Not a military weapon

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