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Blog – Page 1741

As data traffic grows, there is an urgent demand for smaller optical transmitters and receivers capable of handling complex multi-level modulation formats and achieving higher data transmission speeds.

In an important step toward fulfilling this requirement, researchers developed a new compact indium phosphide (InP)-based coherent driver modulator (CDM) and showed that it can achieve a record high baud rate and transmission capacity per wavelength compared to other CDMs.

CDMs are optical transmitters used in optical communication systems that can put information on light by modulating the amplitude and phase before it is transmitted through an optical fiber.

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Vision is the greatest gift to human. Like other creatures, even human eyes can see the beautiful things and others on the earth but perhaps only human can enjoy the beauty of the nature. We can’t see some things but some of them can be experienced. Some things are scientifically proven to exist but they are invisible to our eyes.

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Cellulose is the primary component of the cell walls of plants, making it the most common polymer on Earth. It’s responsible for the properties of materials like wood and cotton and is the primary component of dietary fiber, so it’s hard to overstate its importance to humanity.

Given its ubiquity and the fact that it’s composed of a bunch of sugar molecules linked together, its toughness makes it very difficult to use as a food source. The animals that manage to extract significant calories from cellulose typically do so via specialized digestive tracts that provide a home for symbiotic bacteria—think of the extra stomachs of cows and other ruminants.

Amazingly, humans also play host to bacteria that can break down cellulose—something that wasn’t confirmed until 2003 (long after I’d wrapped up my education). Now, a new study indicates that we’re host to a mix of cellulose-eating bacteria, some via our primate ancestry, and others through our domestication of herbivores such as cows. But urban living has caused the number of these bacteria to shrink dramatically.

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A soft brain implant that unfurls under the skull could give doctors a less invasive way to monitor patients’ brain activity — and maybe allow people to directly control technology with their minds.

The challenge: Placing an electrode array on the surface of the brain allows scientists to see neural activity in far more detail than is possible with electrodes outside of the skull.

Known as “electrocorticography,” this technology was initially developed to treat people with epilepsy, but it’s also been used in research for other types of neurological disorders and in the development of brain-computer interfaces.

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https://www.freethink.com/space/space-elevator 📸: VectorMine / Adobe Stock

The researchers are still working on the issue of scaling up production, but in 2021, state-owned news outlet Xinhua released a video depicting an in-development concept, called “Sky Ladder,” that would consist of space elevators above Earth and the moon.

After riding up the Earth-based space elevator, a capsule would fly to a space station attached to the tether of the moon-based one. If the project could be pulled off — a huge if — China predicts Sky Ladder could cut the cost of sending people and goods to the moon by 96%.

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Like Brian Greer has said the casimir technologies can power anything and create a free society a free utopia without the need for using any chemicals and it has been known since the 1950s in the physics community.

Previous demonstrations of the elusive Casimir force between interfaces exhibit monotonic dependence on surface displacement. Now a non-monotonic dependence of the force has been shown experimentally by exploting nanostructured surfaces.

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