Notes

Geography

The wandering North Pole

The North Magnetic Pole has been moving faster than expected from Canada toward Siberia, Russia, in recent years

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Zoology

Bees capable of adding and subtracting

Apis mellifera bees can learn to recognize quantities

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Geology

Light Brazilian earthquakes

Brazil experiences earthquakes of a low to medium magnitude, similar to those of central-eastern USA and the interior of Australia

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Botany

Rare Cuban flora

The library at Cornell University, USA, has published a scanned copy of a nineteenth-century manuscript on Cuban flora by American botanist Nancy Anne Kingsbury Wollstonecraft on its website

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Urbanism

Controversial airport on sacred Incan land

The recently started construction of an international airport in Chinchero, southeastern Peru, has raised concerns about potential damage to archaeological sites in the region

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Genetics

Monogamy linked to interaction between 24 genes

Researchers found similar gene activity in the monogamous species of different animals

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CNPq

ITA engineer to head the CNPq

Aeronautical engineer João Luiz Filgueiras de Azevedo is the new president of the Brazilian National Council for Scientific and Technological Development, the largest federal funding agency in Brazil

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Botanics

The origin of the mango flower’s sweet smell

In the mango and cajuzinho-do-campo flowers, the scent glands are located at the inner base of the petals

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Medicine

Scaffolds aid neuron regeneration

Neuroscientists and nanoengineering experts have developed 3D-printable scaffolds compatible with living tissue that in the future could be used to treat spinal cord injuries

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Environment

Ice loss in Antarctica increases sixfold in 40 years

A new tool has made it possible to more accurately calculate the thickness of the Antarctic ice sheets and the speed at which they are moving

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Archaeology

First exhibition since the fire

On January 17, the Brazilian National Museum opened its first exhibition since the fire that destroyed much of its collection on September 2, 2018

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Astrophysics

The young, ephemeral rings of Saturn

Two recent studies have presented new theories on their origin and probable end of Saturn's rings

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History

Roughly 1.5 million Jews killed in just three months

Between August and October of 1942, at the height of Operation Reinhard, 500,000 Jews per month were taken to concentration camps and killed in occupied Poland

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Energy

Turbine layout affects power generation

Researchers found that irregular spacing between turbines may optimize energy production

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Funding

British universities face financial uncertainty

British universities are on the brink of a credit crunch, having run up debts of £10.8 billion amidst financial uncertainties caused by Brexit

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Genetics

Rare paternal inheritance

Researchers found maternal and paternal mitochondrial DNA in the cells of multiple generations of men and women from three different families

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Nanotechnology

Sensor detects bacteria in food

Brazilian researchers have developed a biosensor capable of quickly identifying bacteria in food and drink

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Chang'e 4

China lands probe on dark side of the Moon

China has become the first country to land a probe on the far side of the Moon

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Energy

Thousands of solar panels on the Sobradinho dam

The solar farm is capable of generating 1 megawatt peak (MWp)

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Epidemiology

Viruses in monkeys and sloths

Primates and sloths in the Atlantic Forest of southern Bahia carry an unexpected range of insect-borne viruses

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History

Guaraní still influenced by missionaries

People living in areas closer to the mission sites earn about 10% more than residents of neighboring regions where the Jesuit missions were abandoned

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Art

New Nature Museum in Piauí

The new institution is located in an area that borders the Serra da Capivara National Park

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Archaeology

National Museum rescues 1,500 pieces

They include exhibit pieces and others that were stored in the museum's archives, as well as equipment, personal objects, and architectural fragments

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History

France must return African objects

Tens of thousands of African artifacts kept in French museums should be permanently returned if requested by the country of origin

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History

Solar radiation set off sea mines during the Vietnam War

A strong solar storm in 1972 is now believed the most likely cause of the sudden detonation of dozens of naval mines during the Vietnam War

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Microbiology

Bacteria hungry for works of art

Some microorganisms destroy works of art while others protect them

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Astronomy

Telescope measures almost all the starlight ever produced in the universe

Based on data collected by the Fermi Gamma-ray Space Telescope, an international group of astrophysicists has been able to measure almost all of the starlight produced since the universe was formed about 13.7 billion years ago

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Biodiversity

The long life of parrots

Genetic mutations help the turquoise-fronted Amazon parrot live for up to 80 years

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Zoology

Orangutan mother alerts infant of danger after spotting a “tiger”

Primate makes a noise that sounds like a kiss to warn its offspring

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Nobel Prize in Physics

Richard Feynman’s medal sold at auction

The medal was just one of the items up for sale in Sotheby's History of Science and Technology auction

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