Latest News

Green tomatoes’ future foretold

Fruit’s hidden colour reveals whether it will ripen.

Some green tomatoes have a rosy future; others do not. A sensor that picks up subtle differences in the light the fruits reflect could sort future salads from greens.

Many tomatoes are picked green and bathed in ripening gas ethylene. Fruit picked too early will never ripen. Discerning consumers avoid them and growers lose out.

A scanner that analyses the wavelengths green tomatoes bounce back can predict th

Search engine makes social calls

New algorithm exploits community structure of the web.

The web has spontaneously organized itself into communities. A new search algorithm that pinpoints these could help surfers find what they want and avoid offensive content.

Page builders can link anywhere. But they don’t, Gary Flake, of the NEC Research Institute in Princeton, and his colleagues have found. Instead, pages congregate into social groups that focus most of their attention on each other.

Web dir

Man left Africa three times

Early humans came out of Africa again and again.

There were at least three major waves of early human migration out of Africa, our DNA suggests. Apparently the wanderers made love, not war: gene patterns hint that later emigrants bred with residents.

Human origins are contentious. Most researchers agree that there have been several major migrations out of Africa. Some hold that human populations in many regions evolved in parallel after Homo erectus left Africa around two mi

Earliest life or rare dirt?

Gloves are coming off in ancient bacteria bust-up.

A claim to have found evidence of the oldest living things on Earth is being fiercely contested. The argument looks set to run and run, and no one may win, but it may lead to a better understanding of the origins of life on our planet.

The debate is academic, but its implications are not. The ’fossil bacteria’ in question are around 3.5 billion years old. That’s roughly one billion years older than the only confirmed fossil

Revolutionary new findings about the history of trees and climate in Scandinavia

Scientists at Umeå University in Sweden are putting forward an entirely new picture of climate change and the first immigration of trees following the last Ice Age. Research shows that 8,000-14,000 years ago the climate was considerably warmer than was previously thought. When it was at its warmest 9,000-10,000 years ago, the timberline was 500 m higher than today, and leafy trees grew in the mountains. The spruce immigrated considerably earlier that was assumed until now, and it probably came from t

Elektrischer Anstoß zur Selbstorganisation

Neue Materialien mit nichtlinearen optischen Eigenschaften

Fensterscheiben und Brillengläser, die sich bei zunehmender Helligkeit dunkler färben, sind besonders im Sommer eine feine Sache. Optische Eigenschaften, die sich mit der Lichtstärke verändern, so genannte nichtlineare optische Eigenschaften, sind ihr Geheimnis. Auch als optoelektronische Bauteile sind derartige Materialien von Interesse. Voraussetzung für die besonderen optischen Eigenschaften ist eine sehr regelmäßigen Mikrostruktu

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Physics and Astronomy

Real-time detection of infectious disease viruses

… by searching for molecular fingerprinting. A research team consisting of Professor Kyoung-Duck Park and Taeyoung Moon and Huitae Joo, PhD candidates, from the Department of Physics at Pohang University…

A better view with new mid-infrared nanoscopy

Chemical images taken of insides of bacteria 30 times clearer than those from conventional mid-infrared microscopes. A team at the University of Tokyo have constructed an improved mid-infrared microscope, enabling…

Internet can achieve quantum speed with light saved as sound

Researchers at the University of Copenhagen’s Niels Bohr Institute have developed a new way to create quantum memory: A small drum can store data sent with light in its sonic…

Life Sciences and Chemistry

Trash to treasure

Researchers turn metal waste into catalyst for hydrogen. Scientists have found a way to transform metal waste into a highly efficient catalyst to make hydrogen from water, a discovery that…

Bumblebees Don’t Care about Pesticide Cocktails

In their natural environment, wild bees are exposed to various pesticides that can have a potentially toxic effect. A study by the University of Würzburg has now shown that bumblebees…

How blue-green algae manipulate microorganisms

Research team at the University of Freiburg discovers previously unknown gene that indirectly promotes photosynthesis. Cyanobacteria – also called blue-green algae – are known as the “plants of the ocean”…

Materials Sciences

“Nanostitches” enable lighter and tougher composite materials

In research that may lead to next-generation airplanes and spacecraft, MIT engineers used carbon nanotubes to prevent cracking in multilayered composites. To save on fuel and reduce aircraft emissions, engineers…

Evidence for reversible oxygen ion movement during electrical pulsing

…enabler of the emerging ferroelectricity in binary oxides. In a recent study published in Materials Futures, researchers have uncovered a pivotal mechanism driving the emergence of ferroelectricity in binary oxides….

Nothing is everything

How hidden emptiness can define the usefulness of filtration materials. Voids, or empty spaces, exist within matter at all scales, from the astronomical to the microscopic. In a new study,…

Information Technology

Culinary pleasure meets innovative cutting-edge research

CeTI Cluster of Excellence at TU Dresden opens “robot kitchen”.  April 15, 2024, the Cluster of Excellence Centre for Tactile Internet with Human-in-the-Loop (CeTI) at TUD Dresden University of Technology…

Combatting disruptive ‘noise’ in quantum communication

In a significant milestone for quantum communication technology, an experiment has demonstrated how networks can be leveraged to combat disruptive ‘noise’ in quantum communications. The international effort led by researchers…

A chip unique in the world

A team from UPV and iPRONICS has manufactured the first universal, programmable and multifunctional photonic chip on the market. A team from the Photonics Research Laboratory (PRL)-iTEAM of the Universitat…