It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Thank you.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Measuring in the range of 20 to 150 kilohertz, the researchers found that even happy, healthy plants made the occasional noise. But when cut, tobacco plants emitted an average of 15 sounds within an hour of being cut, while tomato plants produced 25 sounds. Stress from drought—brought on by up to ten days without water—elicited about 11 squeals per hour from the tobacco plants, and about 35 from the tomato plants.
The shrieks were also surprisingly informative. When the team fed the recordings into a machine learning model, it was able to use the sounds’ intensity and frequency distinguish whether they were related to dryness or physical harm, or were just regular, day-to-day chatter. One odd pattern? Thirsty tobacco makes a bigger ruckus than tobacco that’s been snipped, reports Adam Vaughan at New Scientist.
Paul Davies' newest book, The Demon in the Machine, takes aim at one of the great outstanding scientific enigmas—what is life, how and why does it emerge and what distinguishes the living from the non-living? The book, which was published this past October in the U.S. has now been named the top physics book of 2019 by Physics World, a publication of the UK Institute of Physics.
..."It is a challenging, but ultimately extremely captivating, fruitful and enjoyable read," said Tushna Commissariat, the Reviews and Careers Editor at Physics World. "You might think a topic like the emergence of life would be quite overwhelming. But Professor Davies' aim is to lay out a basic explanation of how matter (living and otherwise), information and entropy interact. For a topic like this, he is the ultimate guide."
...The challenge for scientists is to understand how 'information,' an abstract concept stemming from the realm of human discourse, can affect material objects. However, as Davies explains, a deep link between information and physics was discovered in the middle of the nineteenth century with a thought experiment by James Clerk Maxwell. Maxwell envisaged a tiny being—a demon—that could use information about molecules to perform mechanical work; that is, to use information as a fuel.
Prettige Kerstdagen