Early humans revealed to have engineered optimised stone tools at Olduvai Gorge

The research, published in the Journal of Royal Society Interface, shows that Palaeolithic hominins selected different raw materials for different stone tools based on how sharp, durable and efficient those materials were. They made these decisions in conjunction with information about the length of time the tools would be used for and the force with which … Read more

Nano antennas for data transfer

Directional antennas convert electrical signals to radio waves and emit them in a particular direction, allowing increased performance and reduced interference. This principle, which is useful in radio wave technology, could also be interesting for miniaturised light sources. After all, almost all Internet-based communication utilises optical light communication. Directional antennas for light could be used … Read more

The effects of microplastics on organisms in coastal areas

Microplastics (plastic particles under 5 mm) are an abundant type of debris found in salt and freshwater environments. In a Limnology & Oceanography Letters study, researchers demonstrated the transfer of microplastics through the food chain between microscopic prey and larval fish that live in coastal ecosystems. They also found that microplastic ingestion interferes with normal growth in … Read more

New map of Milky Way reveals giant wave of stellar nurseries

Astronomers at Harvard University have discovered a monolithic, wave-shaped gaseous structure – the largest ever seen in our galaxy – made up of interconnected stellar nurseries. Dubbed the “Radcliffe wave” in honor of the collaboration’s home base, the Radcliffe Institute for Advanced Study, the discovery transforms a 150-year-old vision of nearby stellar nurseries as an … Read more

Cutting through fog with laser focus

Research from The University of Queensland aimed at controlling light in scattering materials, such as fog or biological tissues, will benefit future biomedical imaging and telecommunications. Optics researchers Dr Mickael Mounaix and Dr Joel Carpenter have found a new way of controlling how light travels through different materials at different times using optical fibres. “The … Read more

New ‘umbrella’ species would massively improve conservation

The protection of Australia’s threatened species could be improved by a factor of seven, if more efficient ‘umbrella’ species were prioritised for protection, according to University of Queensland research. Umbrella species are species which when preserved, indirectly protect many other plant and animal species. UQ PhD candidate Michelle Ward said different choices in Australia could … Read more

Shutdown of coal-fired plants in U.S. saves lives and improves crop yields

The decommissioning of coal-fired power plants in the continental United States has reduced nearby pollution and its negative impacts on human health and crop yields, according to a new University of California San Diego study. The findings published this week in Nature Sustainability use the U.S. transition in recent years from coal towards natural gas for electric … Read more

The birds and the bats: Evolving to fly may have had big effect on gut microbiome

It’s no secret there’s a close relationship between humans and our microbiomes – the communities of microbes that live in and on us. In fact, researchers can usually guess what an animal’s gut microbiome might look like by studying closely related species. Or at least, that’s what they thought. It turns out that while there’s … Read more

Poplars genetically modified not to harm air quality grow as well as non-modified trees

Field trials in the Northwest and Southwest show that poplar trees can be genetically modified to reduce negative impacts on air quality while leaving their growth potential virtually unchanged, says an Oregon State University researcher who collaborated on the study. The findings, published today in the Proceedings of the National Academy of Sciences, are important because … Read more