As suggested A study Conducted by scientists at Emory University in the United States, they have investigated the relationship between hours of sleep and children's growth, among other factors, demonstrating that "growth spurts" that occur suddenly are directly related to an increase in the hours the child sleeps, as occurs in periods of illness or fever.
Specifically, the babies' 43 % experienced a small "growth spurt" during times when there was an "extra" or unusual nap, and one in five also grew in each period in which they slept an hour more than usual.
Punctuated growth
While it is true that growth hormone is released at maximum levels during sleep, it is also released in a punctuated manner, and in smaller quantities at intervals of 3 to 5 hours throughout the day.
Thus, the popular perception that children grow during the night is true, as a group of scientists also confirmed in a study done with lambs published in Journal of Pediatric Orthopedics. Experts at the University of Wisconsin Veterinary School in Madison placed a series of sensors on the leg bones of lambs to determine their growth and found that 90% occurred while the animals were sleeping or at rest.
The debate over the study of bone growth prompts us to ask when brain growth might primarily occur and how discontinuous it may be. This study delves into the growth of skills and body parts and how the way of measuring it has shown us a still photo, a series of snapshots, but not the gradual process.
Thus, not only do children grow taller in a punctuated manner, but so do their brains and other parts of their bodies.
–
The news
Bone growth is concentrated during the time the child is lying down
was originally published in
Xataka Science
by
Sergio Parra
.
It's not getting tested.
The fastest possible speed of sound has been found in a recent study published in Science Advances carried out by the universities of Camrbidge, Queen Mary of London and the Institute of High Pressure Physics, in Russia.
This limit is 36 km/h, approximately twice as fast as the speed of sound in diamond, the hardest known material in the world.
A limit like the speed of light
Sound waves can travel through different media and They move at different speeds depending on what they go through: They move through solids much faster than they would through liquids or gases. But until now it was not known whether sound waves also have an upper speed limit when traveling through solids or liquids, just as the speed of light does.
According to the study, the speed of sound depends on two dimensionless fundamental constants: the fine structure constant and the proton-electron mass ratio.
The scientists tested their theoretical prediction on a wide range of materials and addressed a specific prediction of their theory that the speed of sound should decrease with the mass of the atom. This prediction implies that sound is fastest in solid atomic hydrogen. The researchers performed state-of-the-art quantum mechanical calculations to test this prediction.
As explained Chris Pickard, professor of materials science at the University of Cambridge:
Sound waves in solids are already very important in many scientific fields. For example, seismologists use sound waves initiated by earthquakes deep within the Earth to understand the nature of seismic events and the properties of the Earth's composition. They are also of interest to materials scientists because sound waves are related to important elastic properties, including the ability to resist stress.
–
The news
The maximum limit of the speed of sound is discovered: 36 kilometers per second
was originally published in
Xataka Science
by
Sergio Parra
.
A few lines after starting The importance of the fork, one notices that Bee Wilson She is an extraordinary storyteller. So it doesn't matter that your book basically talks about gastronomy for it to be interesting from a scientific point of view.
When finished The importance of the fork, I confirmed that initial conviction in solid cement, and closed the book thinking that I loved Bee Wilson. And I don't care what he writes: I know that I will always read everything that lights up his head, from now on.
A great storyteller
And it is to affirm that The importance of the fork is about gastronomy or about the history of the objects that our kitchen houses is a tremendously short fall. As short as an armstrong. Because Wilson addresses these topics, naturally, but he also addresses anthropology, sociology, psychology, history, science and many other disciplines that are mixed in a blender in a way that would have excited another Wilson, in this case Edward, author of Consilience: the unity of knowledge.
The Importance of the Fork. Stories, Inventions and Gadgets in the Kitchen (Noema)
So, entering the kitchen with Bee Wilson will not only allow us to learn how to make a good risotto (in a scientifically proven way), the reason why we continue using wooden ladles instead of ladles made of other more modern materials. , or what It is physically impossible to find suitable material for cooking. (any virtue will pay a tribute in the form of a defect on the other hand), but you will also learn from everything.
Bottom line: whether you know how to fry an egg or not, The importance of the fork It is an essential work. Because we all eat, and because the fork is more important than it seems.
–
The news
Books that inspire us: 'The Importance of the Fork' by Bee Wilson
was originally published in
Xataka Science
by
Sergio Parra
.