Physics

Physics

Cooling with a twist

Cooling systems based on twisting and untwisting fibers can reduce water temperature by 7 °C

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Nobel

A prize for men

This year, the six Nobel Prize categories honored 14 people

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Interview

Eunézio Antonio Thoroh de Souza: The voice of graphene

A physicist and opera singer from Minas Gerais has created a research center to turn basic science into high-tech products

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Astronomy

Water in the atmosphere of other worlds

A group has identified water vapor in the atmosphere of planet K2-18b by studying images taken by the Hubble Space Telescope

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New materials 

New energy applications for gold and platinum

Platinum-coated gold nanoparticles could enhance the efficiency of fuel-cell catalysts

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Physico-chemistry

The hidden strokes of Portinari

Tests show how the artist produced his artwork and may be useful in confirming the author of a piece found in the painter’s former home

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Physics

Fluidity in curved space-time

Study supports theory on how dense matter interacts with strong gravitational fields

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Interview

Daniel Kennefick: The importance of Sobral

An astrophysicist and science historian reports that without the observation of the eclipse in the city of Ceará, the experimental results of 1919 would probably have been inconclusive

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Cover

In the British expedition’s shadow

The Sobral eclipse was also observed by scientific expeditions from Brazil and the US

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Cover

When light bent

Observations of the 1919 solar eclipse from Brazil and Africa provided the first experimental proof of Albert Einstein’s theory of relativity

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Physics

Shapes in transition

Group captures real-time changes in the geometry and charge distribution of four molecules

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Interview

Márcia Cristina Bernardes Barbosa: More space for women

Physicist specialized in the properties of water fights gender discrimination in science

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Astronomy

Gravitational waves generated by a new type of collision?

Gravitational waves detected on August 14 of this year were probably generated by a collision between two different celestial bodies

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Physics

The flight of the dandelion seed

Researchers used fluid dynamics equations to analyze the flight behavior of dandelion seeds and modeled the airflow patterns that form around the pappus as it floats through the air

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Video

Profile: Thoroh de Souza

Physicist and classical singer planned a research center aimed at making basic science into high technology products.

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Physics

The unexpected power of friction

Brazilian and German scientists explain unexpected motion of barrel in explosive ping-pong ball experiment

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Reproducibility

A test-tube mirage

Failed cold fusion experiment attempted 30 years ago showed how illusory discoveries trigger self-correcting mechanisms in science

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Retrospect

A physicist with a passion for light

Sérgio Porto played an important role in the introduction and application of laser technology in several fields in Brazil

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PHYSICS

Fluidity in curved space-time

Study backs up theory on how dense matter interacts with strong gravitational fields

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Cover

From war to space

July 20 marks the 50th anniversary of humankind’s arrival on the Moon, the final chapter of a technological and military saga filled with twists and turns

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Cover

Brazilian lunar mission

Garatéa-L project plans to put a nanosatellite into lunar orbit to study how life responds to high levels of radiation

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COVER

Returning to the Moon

The USA wants to put astronauts back on the Moon by 2024, this time with the aim of establishing a permanent settlement

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PROFILE

Extending connections

Brazilian physicist Cecilia Chirenti wins place on Canadian research program for female scientists

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CORPORATE RESEARCH

More than just motors

With an extensive and diversified product portfolio, Brazilian-based WEG supplied electromagnets for the Sirius synchrotron light project in Brazil

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Physics

Particle super-cooler

São Carlos research group develops simpler method for producing ultracold molecules

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Cosmology

Visibility limit

International radio telescope array produces the first image of a black hole

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Astronautics

The private conquest of the Cosmos

A capsule of the company SpaceX flies to the International Space Station and may give the United States the capacity to put humans in orbit

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INTERVIEW

Daniel Kennefick: The importance of Sobral

An astrophysicist and science historian reports that without the observation of the eclipse in the city of Ceará, the experimental results of 1919 would probably have been inconclusive

By

Cover

In the British expedition’s shadow

The Sobral eclipse was also observed by scientific expeditions from Brazil and the US

By

COVER

When light bent

Observation of the 1919 solar eclipse from Brazil and Africa provided the first experimental proof of Albert Einstein’s theory of relativity

By and