Showing posts with label science. Show all posts
Showing posts with label science. Show all posts
Tuesday, January 5, 2021
Tuesday, January 28, 2020
Space Weather Woman
In his YouTube channel, Space Weather Woman, the space predictions have to do with storms, but with solar or Martian; also with the storms but those in the solar corona or on the moon of Jupiter Europe and with phenomena such as eclipses and transits, such as Mercury. It reminded me a little of the Martian meteorology page that NASA has
s
s
Sunday, January 26, 2020
This image weighs almost 2GB: Hubble shows us a nearby galaxy in detail
A few hours ago, NASA shared an image taken by Hubble weighing 1.67GB, in which we can observe in detail the Triangle galaxy (also known as Messier 33 or M33).
Saturday, January 25, 2020
15,000 years old, a large number of ancient viruses have been found
https://presurferstyle.blogspot.com/
In samples of ice cores collected from a glacier on the Tibetan plateau that were approximately 15,000 years old, a large number of ancient viruses have been found thanks to a study by researchers at the Ohio State University and the Lawrence Berkeley National Laboratory.
In samples of ice cores collected from a glacier on the Tibetan plateau that were approximately 15,000 years old, a large number of ancient viruses have been found thanks to a study by researchers at the Ohio State University and the Lawrence Berkeley National Laboratory.
Friday, January 24, 2020
Google officially opens Dataset Search with 25 million open datasets on all types of topics
Google has officially opened its Dataset Search search engine that until now had been in beta. It is a search engine that has indexed 25 million datasets with all kinds of information: official data from governments and public entities, market research, scientific data, about the world of agriculture, literature or the economy
Hearing "talk" to a mummy: the not-so-crazy idea that researchers have carried out with 3D printing and other tools
As an experiment it is striking and certainly original, but how did they come up with the idea? In Gizmodo they have been able to talk to researchers and John Schofield (co-author) explains that they simply wanted to see if it was possible to recreate a voice from the past, motivated by being able to create another way of being in touch with the past as it happens in a museum.
what they have obtained is a simple vocalization (in this link.you can hear the mummy
what they have obtained is a simple vocalization (in this link.you can hear the mummy
Thursday, January 23, 2020
This is the most accurate 3D map of a brain: 20 million synapses connecting 25,000 neurons that you can explore
The brain is one of the most complex parts of an organism, thousands and thousands of neurons connected to each other to send electrical impulses that make the rest of the living being work. To put the magnitude of this system into context, a team of researchers has created a precise three-dimensional map that shows a brain with more than 25,000 neurons connected. And it is that of a simple fly, not even close to the brain of a human, but it is still surprising.
Monday, January 20, 2020
China is going to become the third nation to bring lunar samples to Earth, after the United States and Russia
China will bring samples from an unexplored area of the Moon, according to Peng Jing, deputy chief designer of the Chang'e 5 probe at the Chinese Space Technology Academy.
Sunday, January 19, 2020
The Chainsaw Was Invented to Assist With Difficult Childbirth
viafilms/iStock via Getty Images
The Chainsaw Was Invented to Assist With Difficult Childbirth
If circumstances warranted it, the doctor would grab the saw, which had a
handle on both ends, and wrap the chain around the pelvic bone, pulling
each handle so the chain would cut into the bone. Later, the device was
outfitted with a hand crank. Thanks to this innovation, difficult
births could be described as merely agonizing as opposed to extended
torture.
read more at mentalfloss and Popular Science
Saturday, January 18, 2020
Two atoms separating and joining several times to form a molecule
A molecule made of two rhenium atoms (dark spots) travels around two
carbon nanotubes (lighter lattice of spots), settling into the gap
between the nanotubes. When the atoms separate by a larger distance, the
bond between the atoms is broken, and then later reforms.
Friday, January 17, 2020
A trick to multiply two large numbers and amaze students or other people
Students choose a three-digit number
He chooses another number (143)
... and all to multiply on the board: prepared, ready, now!
Naturally, the wise teacher always wins. The trick is more or less simple - or not so much, it depends on how you look at it - and it has to do with the chosen number. It also requires a bit of mental calculation.
The thing works like this: it turns out that 143 × 7 = 1001. And it is known that when a three-digit number is multiplied by 1001 the result is the same number "repeated twice"; in example 953 it would be 953953. But if you divide 953953/7 (or seen in another way, 953 × 1001/7) it is easy to see that the result is the one that arises: 953 × 143.
So the mental trick is to mentally divide 953953 by 7. Something that may have more or less difficulty but that by fixing the gaze and putting "concentration face" can be done in a few seconds. The result always gives exact.
He chooses another number (143)
... and all to multiply on the board: prepared, ready, now!
Naturally, the wise teacher always wins. The trick is more or less simple - or not so much, it depends on how you look at it - and it has to do with the chosen number. It also requires a bit of mental calculation.
The thing works like this: it turns out that 143 × 7 = 1001. And it is known that when a three-digit number is multiplied by 1001 the result is the same number "repeated twice"; in example 953 it would be 953953. But if you divide 953953/7 (or seen in another way, 953 × 1001/7) it is easy to see that the result is the one that arises: 953 × 143.
So the mental trick is to mentally divide 953953 by 7. Something that may have more or less difficulty but that by fixing the gaze and putting "concentration face" can be done in a few seconds. The result always gives exact.
The Parker Solar Probe mission sends us an audio with the sound of the solar wind
An instrument aboard NASA's Parker Solar Probe mission is able to 'hear' the interaction of waves and particles that make up the solar wind: through the roar of the wind, we can hear the small squeaks and whispers that hint at the origin of this wind.
It looks like a dove and flies like a dove
It is not the first (nor will it be the last) time that technology imitating nature, and now a group of researchers at Stanford University are showing an amazing robot capable of flying by mimicking many of the characteristics of birds.
more info at Science Robotics Science today,
more info at Science Robotics Science today,
Wednesday, January 15, 2020
Hydropanels that transform air into water: an ambitious product that seeks to help have a sustainable source of drinking water
Zero Mass Water is an American startup that for several years set out to develop products that help people have access to drinking water. In 2016 we were introduced to 'Source', a solar panel that aims to extract moisture from the air to condense it and thus offer drinking water.
Tuesday, January 14, 2020
First image of what is the closest asteroid to the Sun so far
It is the first asteroid that moves completely within the orbit of Venus, and also, consequently, the closest asteroid to the Sun that has been discovered so far.
It is about 2020 AV2, and it constitutes a very particular object because only the planet Mercury is continuously closer to the Sun.
The Virtual Telescope Projecy 2.0 has released the first image of the asteroid, taken on January 8. Taking those images was difficult, because the object was quite low (25 degrees or less) over the western horizon, at dusk.
It is about 2020 AV2, and it constitutes a very particular object because only the planet Mercury is continuously closer to the Sun.
The Virtual Telescope Projecy 2.0 has released the first image of the asteroid, taken on January 8. Taking those images was difficult, because the object was quite low (25 degrees or less) over the western horizon, at dusk.
We have just discovered the oldest material ever found on Earth: star dust from 7 billion years ago
The stardust existed long before our solar system and hitched a ride to Earth on a space rock
A study published in Proceedings of the National Academy of Sciences reveals the peculiarities of this meteorite that has now been studied in depth. It contains inside dust grains of ancient stars that are older than the Sun (around 4.6 billion years) and of course our planet. A time capsule that takes us to a time before everything we know about our existence on planet Earth
Murchison is the name this meteorite receives
more info at CNET
A study published in Proceedings of the National Academy of Sciences reveals the peculiarities of this meteorite that has now been studied in depth. It contains inside dust grains of ancient stars that are older than the Sun (around 4.6 billion years) and of course our planet. A time capsule that takes us to a time before everything we know about our existence on planet Earth
Murchison is the name this meteorite receives
more info at CNET
Saturday, January 11, 2020
A detailed reading of the astrophysical thesis on interstellar dust by Dr. Brian May (better known as Queen's guitarist
It is known that Brian May, one of the members of the mythical Queen music group, is also a doctor of astrophysics. But the most curious thing is that although the great guitarist and composer graduated in 1968 and began his doctoral thesis in 1971 ... he did not finish it until 30 years later, in 2007
In her YouTube channel Dr. Becky, the also a doctor of astrophysics and disseminator Becky Smethurst makes an exhaustive review of this thesis
A survey of radial velocities in the Zodiacal dust cloud [PDF]
Friday, January 10, 2020
Thanks to this technique we can listen to what a person who cannot speak has to say
Using computational models known as neural networks, a group of researchers has reconstructed words and sentences that, in some cases, were intelligible to human listeners and were intended to be verbalized by various patients.
The development of this technique allows people to "listen" to people who cannot speak due to illness simply by deciphering the data they recorded in the patients' brains. That is, it was enough for the person to imagine what he wanted to say.
more info in this link
Subscribe to:
Posts (Atom)








