61
Caltech Develops First Noninvasive Method to Continually Measure Blood Pressure
Device uses sound waves to gather blood pressure data from blood vessels, monitoring the response with ultrasound.
Topics /
Science & Space
The most popular blog posts about science & space on Hacker News. 205 posts.
62
Heinz’s sustainable ketchup cap
CT scans of Heinz's new recyclable ketchup cap reveal the channel geometry that replaced a silicone valve and why the redesign took eight years.
63
How to Train Yourself to Go to Sleep Earlier
Whether you want to get more sleep, wake up earlier, or change your nighttime routine, learn science-backed tips for to going to sleep earlier.
64
65
Butterflies accumulate static electricity to attract pollen without contact
Butterflies and moths collect so much static electricity whilst in flight, that pollen grains from flowers can be pulled by static electricity across air gaps of several millimetres or centimetres.
66
Is Clear Air Turbulence becoming more common?
In recent years there has been a noticeable uptick in publicized incidents of turbulence affecting commercial aircraft. These events, sometimes unexpected and severe, have led to passenger injuries, emergency landings, and a recent rare fatality. Turbulence can be caused by a variety of factors, from the mixing of air…
67
First pictures from Euclid satellite reveal billions of orphan stars
The first scientific pictures from the Euclid satellite mission have revealed more than 1,500 billion orphan stars scattered throughout the Perseus cluster of galaxies.
68
Researchers find Alzheimer's-like brain changes in long Covid patients
New research from the University of Kentucky’s Sanders-Brown Center on Aging shows compelling evidence that the cognitive impairments observed in long COVID patients share striking similarities with those seen in Alzheimer’s disease and related dementias.
69
Fastest rate of natural carbon dioxide rise over the last 50k years
CORVALLIS, Ore. – Today’s rate of atmospheric carbon dioxide increase is 10 times faster than at any other point in the past 50,000 years, researchers have found through a detailed chemical analysis of ancient Antarctic ice. The findings, just published in the Proceedings of the National Academy of Sciences, provide…
70
Sky lapse in two tone
Using Sentinel-1 radar imagery to make out the shapes of our changing seaborne energy system
71
Diffractive Chocolate
Turn your chocolate into an edible color spectrum…
72
ESO telescope captures the most detailed infrared map of the Milky Way
Astronomers have published a gigantic infrared map of the Milky Way containing more than 1.5 billion objects ― the most detailed one ever made. Using the European Southern Observatory’s VISTA telescope, the team monitored the central regions of our Galaxy over more than 13 years. At 500 terabytes of data, this is the…
73
Astronomers see a black hole awaken in real time
Ende 2019 begann die zuvor unauffällige Galaxie SDSS1335+0728 plötzlich heller zu leuchten als je zuvor. Um den Ursachen auf den Grund zu gehen, haben Astronom*innen Daten von mehreren weltraumbasierten und bodengebundenen Observatorien, darunter das Very Large Telescope (VLT) der Europäischen Südsternwarte (ESO)…
74
First-in-human implantation of bionic device to halt Crohn's disease (2023)
World first: Clinicians have implanted an electrical nerve stimulation device into a Crohn’s disease patient to stop post-surgery inflammation recurring.
75
Tests show high-temperature superconducting magnets are ready for fusion
A comprehensive study of high-temperature superconducting magnets built by MIT and Commonwealth Fusion Systems confirms they meet requirements for an economic, compact fusion power plant.
76
Chlorpyrifos: Pesticide tied to brain damage in children
Prenatal exposure to chlorpyrifos, a widely used insecticide, is linked to lower birth weight, reduced IQ, loss of working memory, attention disorders, and delayed motor development.
77
78
When muscles work out, they help neurons to grow, a new study shows
Exercise can have benefits at the level of neurons, through chemical and mechanical effects, MIT researchers find. The discovery could inform exercise-related therapies for repairing damaged and deteriorating nerves.
79
'Visual clutter' alters information flow in the brain
Too much stuff in the periphery of our vision can make it difficult to identify what we’re seeing. Yale researchers now know how that clutter affects the brain.
80
Protein biomarkers predict dementia 15 years before diagnosis in new study
In the largest study of its kind, scientists have shown how protein “biomarkers” predict dementia 15 years before diagnosis.
81
Gene-silencing tool shows promise as a future therapy against prion diseases
MIT Whitehead and Broad Institute researchers designed an epigenetic editor that can silence the prion protein gene, which could potentially be developed into a therapy against fatal prion diseases. The same approach could be used against other genetic diseases.
82
Monitoring marine litter from space
Every 60 seconds the equivalent of a lorry-load of plastic enters the global ocean. Where it goes after that remains largely unknown. But a new ESA Discovery study reported in Nature Communications has proven the concept of monitoring floating plastic litter using satellites.
83
Gene banks aren’t enough to save the world’s food
Why gene banks aren’t enough to save the world’s food
84
Goldene: A single atom layer of gold
For the first time, scientists have managed to create sheets of gold only a single atom layer thick. According to the researchers from LiU this has given the gold new properties that can make it suitable for use in various applications.
85
Possible association between tattoos and lymphoma
Lund University. Our knowledge regarding the long-term health effects of tattoos is currently poor, and there is not a lot of research within this area. Now a research group at Lund University has investigated the association between tattoos and lymphoma.
86
Mechanical computer relies on kirigami cubes, not electronics
The mechanical computer uses a complex structure of rigid, interconnected polymer cubes to store, retrieve and erase data without relying on electronic components.
87
Research shows plant-based polymers can disappear within seven months
Finding viable alternatives to traditional petroleum-based plastics and microplastics has never been more important. New research from scientists at UC San Diego and Algenesis shows that their plant-based polymers biodegrade — even at the microplastic level — in under seven months.
88
Vehicle brakes produce charged particles that may harm public health: study
The work could help efforts to contain an important source of air pollution
89
New mRNA cancer vaccine triggers immune response to malignant brain tumor
In a first-ever human clinical trial of four adult patients, an mRNA cancer vaccine developed at the University of Florida quickly reprogrammed the immune…
90
Why Are Sloths So Slow?
What does it really mean to be a sloth? Why are they so slow? And why does it work?