Our understanding of the world is mostly built on basic perceptions, such as that events follow each other in a well-defined order. Such definite orders are required in the macroscopic world, for which the laws of classical physics apply. However, in the quantum world orders can be ‘scrambled’. It is possible for different orders of quantum operations to coexist in a superposition. New work by a team of physicists is the first experimental quantification of such a superposition.
Many ant species live in often highly specific symbiotic relationships with plants from which both partners benefit. Researchers now reveal that such selective interactions can break down over the course of evolution.
The ability to remember sounds, and manipulate them in our minds, is incredibly important to our daily lives -- without it we would not be able to understand a sentence, or do simple arithmetic. New research is shedding light on how sound memory works, and is even demonstrating a means to improve it.
Nanocars will compete for the first time ever during an international molecule-car race on April 28-29, 2017 in Toulouse (south-western France). The vehicles, which consist of a few hundred atoms, will be powered by minute electrical pulses during the 36 hours of the race, in which they must navigate a racecourse made of gold atoms, and measuring a maximum of a 100 nanometers in length.
On the long journey from the fruit plantation to the retailer's shelf, fruits can quickly perish. In particular, the refrigeration inside the cargo containers is not always guaranteed and existing methods for measuring the temperature are not sufficiently reliable. A new sensor solves this problem. It looks like a piece of fruit and acts like a piece of fruit -- but is actually a spy.
Scientists have created a new technique that simplifies the production of human brain and muscle cells -- allowing millions of functional cells to be generated in just a few days. The results open the door to producing a diversity of new cell types that could not be made before in order to study disease.
Studies of wolf spiders found that courtship displays help preserve genetic isolation between closely related species. Another study found that the species Gladicosa bellamyi used multi-modal communication to entice females.
Astronomers have directly observed a pair of Milky Way-like galaxies seen when the universe was only eight percent of its current age. These progenitors of today's giant spiral galaxies are surrounded by 'super halos' of hydrogen gas that extend many tens-of-thousands of light-years beyond their dusty, star-filled disks.
Scientists have developed a new method that can be used to construct custom hybrid structures using DNA and proteins. The method opens new opportunities for fundamental research in cell biology and for applications in biotechnology and medicine.
Researchers face a fundamental challenge as they seek to scale up human tissue regeneration from small lab samples to full-size tissues and organs: how to establish a vascular system that delivers blood deep into the developing tissue. Researchers have now successfully turned to plants, culturing beating human heart cells on spinach leaves that were stripped of plant cells.
New archaeological analysis suggests people of Western Roman Empire switched between Hunnic nomadism and settled farming over a lifetime. Findings may be evidence of tribal encroachment that undermined Roman Empire during 5th century AD, contributing to its fall.
Researchers have used machine learning on the Stampede supercomputer to model the cellular control network that determines how tadpoles develop. Using that model, they reverse-engineered a drug intervention that created tadpoles with a form of mixed pigmentation never before seen in nature. They plan to use the method for cancer therapies and regenerative medicine.
Satellites have been mapping the upper part of the Earth magnetic field by collecting data for three years and found some amazing features about the Earth’s crust. The result is the release of highest resolution map of this field seen from space to date. This ‘lithospheric magnetic field’ is very weak and therefore difficult to detect and map from space. But with the Swarm satellites it has been possible.
Researchers have developed the next step in microbial fuel cells (MFCs) with the first micro-scale self-sustaining cell, which generated power for 13 straight days through symbiotic interactions of two types of bacteria.