Friday, 11 July 2025

Sea urchins' ballistic escape from predators

Added: 13.11.2021 1:25 | 259 views | 0 comments

New research shows that sea urchins, albeit having a limited and ancestral sensory system, can show a complex behaviour when escaping a predator. These marine invertebrates tend to move slowly and with unpredictable movements, but when they smell a predator, they escape following a ballistic motion -- straightforward, quick and directional -- to escape the threat.

Tags: Mars , Seal , Seat

Source: www.sciencedaily.com

ESR-STM on single molecules and molecule-based structures

Added: 13.11.2021 1:25 | 260 views | 0 comments

Researchers extend single-atom electron spin resonance with STM from atoms to molecules, opening the power of synthetic chemistry to engineer their quantum states.

Source: www.sciencedaily.com

Sea urchins' ballistic escape from predators

Added: 13.11.2021 1:25 | 253 views | 0 comments

Tags: Mars , Seal , Seat

Source: www.sciencedaily.com

More evidence of an evolutionary ‘arms race’ between genes and selfish genetic elements

Added: 12.11.2021 15:05 | 242 views | 0 comments

Researchers discover further evidence of an evolutionary arms race within organisms -- and the mechanisms at play in this arms race -- to combat selfish genetic elements.

Tags: Army , Genes

Source: www.sciencedaily.com

Electron family creates previously unknown state of matter

Added: 12.11.2021 8:48 | 255 views | 0 comments

Researchers have demonstrated a completely novel state of matter in a metal. It is created by the combination of four electrons -- until now, only electron pairs were known. This discovery could lead to a new type of superconductivity, an entirely new research direction, and revolutionary technologies such as quantum sensors.

Tags: Technology

Source: www.sciencedaily.com

Just a game? Study shows no evidence that violent video games lead to real-life violence

Added: 12.11.2021 8:48 | 256 views | 0 comments

As the latest Call of Duty video game is released in the UK today, and with Battlefield 2042 and a remastered Grand Theft Auto trilogy to follow later this month, new research finds no evidence that violence increases after a new video game is released.

Tags: Battlefield

Source: www.sciencedaily.com

Physicists discover novel quantum effect in bilayer graphene

Added: 12.11.2021 8:48 | 265 views | 0 comments

Theorists have observed a rare phenomenon called the quantum anomalous Hall effect in a very simple material. Previous experiments have detected it only in complex or delicate materials.

Source: www.sciencedaily.com

Study finds fish rubbing up against their predators — sharks

Added: 12.11.2021 8:48 | 254 views | 0 comments

While rubbing up against a shark sounds like a risky move if you're a fish, a collaborative research team found that this behavior is frequent, widespread, and could play a previously unappreciated important ecological role for aquatic animals.

Tags: Animals

Source: www.sciencedaily.com

Partial skull of a child of Homo naledi: Insight into stages of life of remarkable species

Added: 12.11.2021 8:48 | 269 views | 0 comments

Researchers have revealed the first partial skull of a Homo naledi child that was found in the remote depths of the Rising Star cave in Johannesburg, South Africa. The team announced the discovery of parts of the skull and teeth of the child that died almost 250,000 years ago.

Tags: Teeth , Fire , Africa , South Africa

Source: www.sciencedaily.com

Researchers find repeated link between volcanic eruptions and dynastic collapse in China's Imperial Era

Added: 12.11.2021 2:46 | 248 views | 0 comments

Volcanic eruptions may have triggered abrupt climate changes contributing to the repeated collapse of Chinese dynasties over the past 2,000 years, according to new research. The study also illustrates how volcanic eruptions can profoundly impact vulnerable or unstable regions and highlights the need to prepare for future eruptions.

Tags: Climate change

Source: www.sciencedaily.com

Using mechanical tools improves our language skills, study finds

Added: 11.11.2021 20:42 | 268 views | 0 comments

Research has revealed a correlation between being particularly proficient in tool use and having good syntactic ability. A new study has now shown that both skills rely on the same neurological resources, which are located in the same brain region. Furthermore, motor training using a tool improves our ability to understand the syntax of complex sentences and -- vice-versa -- syntactic training improves our proficiency in using tools.

Source: www.sciencedaily.com

Near-earth asteroid might be a lost fragment of the moon

Added: 11.11.2021 18:03 | 288 views | 0 comments

Near-Earth asteroid Kamo`oalewa could be a fragment of our moon.

Tags: Lost , Asteroids

Source: www.sciencedaily.com

Novel approach to a plant-based diet, unique to long-necked dinosaurs

Added: 11.11.2021 13:04 | 261 views | 0 comments

A new study uncovers a novel approach to a plant-based diet, unique to long-necked dinosaurs.

Source: www.sciencedaily.com

Black hole found hiding in star cluster outside our galaxy

Added: 11.11.2021 13:03 | 274 views | 0 comments

Astronomers have discovered a small black hole outside the Milky Way by looking at how it influences the motion of a star in its close vicinity. This is the first time this detection method has been used to reveal the presence of a black hole outside of our galaxy. The method could be key to unveiling hidden black holes in the Milky Way and nearby galaxies, and to help shed light on how these mysterious objects form and evolve.

Tags: Fire , Beer

Source: www.sciencedaily.com

A personalized exosuit for real-world walking

Added: 10.11.2021 19:53 | 263 views | 0 comments

Researchers have developed a new approach in which robotic exosuit assistance can be calibrated to an individual and adapt to a variety of real-world walking tasks in a matter of seconds. The bioinspired system uses ultrasound measurements of muscle dynamics to develop a personalized and activity-specific assistance profile for users of the exosuit.

Tags: Walking

Source: www.sciencedaily.com

When algorithms get creative

Added: 10.11.2021 18:16 | 272 views | 0 comments

Uncovering the mechanisms of learning via synaptic plasticity is a critical step towards understanding how our brains function and building truly intelligent, adaptive machines. Researchers propose a new approach in which algorithms mimic biological evolution and learn efficiently through creative evolution.

Source: www.sciencedaily.com

Nuclear radiation used to transmit digital data wirelessly

Added: 10.11.2021 18:15 | 279 views | 0 comments

Engineers have successfully transferred digitally encoded information wirelessly using nuclear radiation instead of conventional technology. The researchers measured the spontaneous emission of fast neutrons from californium-252, a radioactive isotope produced in nuclear reactors. Several examples of information, i.e., a word, the alphabet and a random number selected blindly, were encoded serially into the modulation of the neutron field and the output decoded on a laptop which recovered the encoded information on screen. Fast neutrons have an advantage over conventional electromagnetic waves, which are significantly weakened by transmission through materials including metals.

Tags: Neutrons , Technology

Source: www.sciencedaily.com

New method to detect Tatooine-like planets validated

Added: 10.11.2021 18:15 | 291 views | 0 comments

A new method has allowed scientists to quickly detect a transiting planet with two suns.

Tags: Planes , Scientists

Source: www.sciencedaily.com

Tread lightly: ‘Eggshell planets’ possible around other stars

Added: 10.11.2021 15:46 | 243 views | 0 comments

Strange 'eggshell planets' are among the rich variety of exoplanets possible, according to a study. These rocky worlds have an ultra-thin outer brittle layer and little to no topography. Such worlds are unlikely to have plate tectonics, raising questions as to their habitability. Planetary geologists have said at least three such worlds found during previous astronomical surveys may already be known.

Tags: Planes

Source: www.sciencedaily.com

Rapidly evolving species more likely to go extinct, study suggests

Added: 10.11.2021 15:46 | 278 views | 0 comments