Soldiers and tanks may care about national borders. Cyber doesn’t.
Category: futurism – Page 655
Plants help reduce toxic mercury from environment, says study
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Plants absorb a vast amount of toxic mercury gas in the atmosphere and help reducing the pollutant worldwide by depositing the element into soils, said researchers.
The process is similar to the absorption of carbon dioxide emissions by plants, said the team from University of Massachusetts Lowell, in the US.
Hundreds of tonnes of mercury each year are emitted into the atmosphere as a gas by burning coal, mining and other industrial and natural processes.
How Left and Right Hippocampal CA1 Regions in the Mouse Brain Talk With Each Other
Researchers have uncovered neural circuitry that allows the CA1 region of th… See more.
Summary: Researchers have uncovered neural circuitry that allows the CA1 region of the hippocampus to communicate with its counterpart in the opposite hemisphere despite there being no connection between them.
Source: RIKEN
RIKEN neuroscientists have uncovered the neural circuitry that permits a subregion in the hippocampus to communicate with its counterpart in the opposite hemisphere despite there being no direct connection between them. While not directly applicable to people, this finding is important for informing future studies of the mouse brain.
The hippocampus is well known for its role in learning and memory. Vertebrates have two hippocampi: one on the left side of the brain and the other on the right. Each hippocampus has various subregions, including the CA1 and CA3 areas.
Telecommunications bit rates 1798–2120
This graph shows the progress in telecommunications bit rates over the last two centuries, and a future extrapolation to the 22nd century.
A primitive form of telecommunications emerged in the late 18th century, when French inventor Claude Chappe demonstrated a practical semaphore system that delivered messages between Paris and Lille. Known as the optical telegraph, it had a transmission rate of two to three symbols (196 different types) each minute, or about 0.4 b/s.
The electrical telegraph, popularised in the 1840s, used a coding system developed by American inventor Samuel Morse, which encoded text characters as sequences of two different signal durations, called dots and dashes. It achieved a rate of approximately 100 b/s.
