Acidity sensor creates a heat map of teeth at risk of decay

A cavity is a pretty clear sign of tooth trouble, but there are warnings to be seen before these tiny openings start to appear. A newly developed optical device is designed to reveal at-risk areas of our teeth by detecting hotspots of high acidity in d… Continue reading Acidity sensor creates a heat map of teeth at risk of decay

COVID-19 raises risk of mental health problems in year after infection

A large study has found high rates of mental health problems in COVID-19 patients up to a year after their acute infection. Looking at health records from millions of Americans the research found mild or severe COVID-19 increased a person’s risk of dev… Continue reading COVID-19 raises risk of mental health problems in year after infection

Smartphone system measures clotting time of users’ blood samples

People who are using blood-thinning medications regularly have to check if their dosage needs adjusting. And while doing so currently involves lab tests or expensive home systems, a simple smartphone-based setup may soon be able to perform the task.Con… Continue reading Smartphone system measures clotting time of users’ blood samples

New study reveals how the color of your shirt could attract mosquitoes

If you’ve ever been eaten alive by mosquitoes at a barbecue while the person sitting next to you escapes unbitten, the color of your clothes might be to blame. New experiments reveal that certain colors attract hungry mosquitoes while others are ignore… Continue reading New study reveals how the color of your shirt could attract mosquitoes

Tiny salt-grain-sized camera snaps hi-res full-color images

Researchers at Princeton and the the University of Washington have developed a tiny camera, the size of a grain of salt, which can snap sharp, full-color images. It’s made with a metasurface that captures light, which could be scaled up to turn entire … Continue reading Tiny salt-grain-sized camera snaps hi-res full-color images

Wearable device injects antidote when it detects opioid overdoses

Although the drug naloxone can be a lifesaver in cases of opioid overdose, it has to be administered quickly. That’s where a new wearable device comes in, as it’s designed to first detect the effects of an overdose, and then deliver an injection of nal… Continue reading Wearable device injects antidote when it detects opioid overdoses

Heat-healing carbon fiber could be easily repaired and recycled

Although carbon fiber can be repaired and recycled to a certain extent, it’s typically just discarded once it’s damaged. According to a recent study, however, a new type of the material can be easily fixed or reused through the simple application of he… Continue reading Heat-healing carbon fiber could be easily repaired and recycled

Record low ice concentrations found in the Arctic’s “Last Ice Area”

With Siberian heatwaves, rapidly declining ice and a warming trend that is three times the rate of the rest of the globe, the Arctic is feeling the brunt of climate change as much as any region on Earth. One glimmer of hope is what’s known as the “Last… Continue reading Record low ice concentrations found in the Arctic’s “Last Ice Area”

Bone pit may be site of “earliest-known indiscriminate mass killing”

In case there was ever any doubt … atrocities are nothing new. Scientists have recently determined that piled human remains unearthed in what is now Potočani, Croatia, represent the earliest-known indiscriminate mass killing.Continue ReadingCategory: S… Continue reading Bone pit may be site of “earliest-known indiscriminate mass killing”

Smart speaker uses AI to detect irregular heart rhythms in the room

Scientists at the University of Washington (UW) have leveraged modern machine learning technology to produce a prototype smart speaker that can monitor a person’s heart, without the need for them to physical touch it. The contactless method of tracking… Continue reading Smart speaker uses AI to detect irregular heart rhythms in the room