By the next post I will be dealing with what constellation are and facts regarding them
For any suggestion @Jpassion4me
For any suggestion @Jpassion4me
What's a constellation?
👉A constellation is a group of stars that appears to form a pattern or picture like Orion the Great Hunter, Leo the Lion, or Taurus the Bull. Constellations are easily recognizable patterns that help people orient themselves using the night sky. There are 88 “official” constellations.
Are the stars in a constellation near each other?
👉Not necessarily. Each constellation is a collection of stars that are distributed in space in three dimensions – the stars are all different distances from Earth. The stars in a constellation appear to be in the same plane because we are viewing them from very, very, far away. Stars vary greatly in size, distance from Earth, and temperature. Dimmer stars may be smaller, farther away, or cooler than brighter stars. By the same token, the brightest stars are not necessarily the closest. Of the stars in Cygnus, the swan, the faintest star is the closest and the brightest star is the farthest!
How are constellations named?
👉Most of the constellation names we know came from the ancient Middle Eastern, Greek, and Roman cultures. They identified clusters of stars as gods, goddesses, animals, and objects of their stories. It is important to understand that these were not the only cultures populating the night sky with characters important to their lives. Cultures all over the world and throughout time — Native American, Asian, and African — have made pictures with those same stars. In some cases the constellations may have had ceremonial or religious significance. In other cases, the star groupings helped to mark the passage of time between planting and harvesting. There are 48 “ancient” constellations and they are the brightest groupings of stars – those observed easily by the unaided eye. There actually are 50 “ancient” constellations; astronomers divided one of the constellations (Argo) into 3 parts.
👉“Modern” constellations — like the Peacock, Telescope, and Giraffe — were identified by later astronomers of the 1500s, 1600s, and 1700s who used telescopes and who were able to observe the night sky in the southern hemisphere. These scientists “connected” the dimmer stars between the ancient constellations. There are 38 modern constellations.
👉 In 1930 the International Astronomical Union officially listed 88 modern and ancient constellations (one of the ancient constellations was divided into 3 parts) and drew a boundary around each. The boundary edges meet, dividing the imaginary sphere — the celestial sphere — surrounding Earth into 88 pieces. Astronomers consider any star within a constellation boundary to be part of that constellation, even if it is not part of the actual picture.
👉Puzzle of the night sky’s constellation boundaries.
Are all stars part of a constellation?
No, there are billions of stars, and only a fraction of them make up the shapes of our constellations — these are the stars that are easily seen with the unaided eye. Ancient observers connected these stars into the star pictures.
👉All stars, however, fall within the boundaries of one of the 88 constellation regions. As astronomers studied the night sky with modern telescopes, they were able to discern stars in the dark spaces around the constellations — stars that were not part of the original star pictures. You can see some of these stars by observing the sky on a dark night. If you look at the sky with binoculars, you will see even more stars. If you have a telescope, you will see even more! All the stars you see belong to one special group of stars - the stars in our own galaxy, the Milky Way.
@universalsciencefacts
👉A constellation is a group of stars that appears to form a pattern or picture like Orion the Great Hunter, Leo the Lion, or Taurus the Bull. Constellations are easily recognizable patterns that help people orient themselves using the night sky. There are 88 “official” constellations.
Are the stars in a constellation near each other?
👉Not necessarily. Each constellation is a collection of stars that are distributed in space in three dimensions – the stars are all different distances from Earth. The stars in a constellation appear to be in the same plane because we are viewing them from very, very, far away. Stars vary greatly in size, distance from Earth, and temperature. Dimmer stars may be smaller, farther away, or cooler than brighter stars. By the same token, the brightest stars are not necessarily the closest. Of the stars in Cygnus, the swan, the faintest star is the closest and the brightest star is the farthest!
How are constellations named?
👉Most of the constellation names we know came from the ancient Middle Eastern, Greek, and Roman cultures. They identified clusters of stars as gods, goddesses, animals, and objects of their stories. It is important to understand that these were not the only cultures populating the night sky with characters important to their lives. Cultures all over the world and throughout time — Native American, Asian, and African — have made pictures with those same stars. In some cases the constellations may have had ceremonial or religious significance. In other cases, the star groupings helped to mark the passage of time between planting and harvesting. There are 48 “ancient” constellations and they are the brightest groupings of stars – those observed easily by the unaided eye. There actually are 50 “ancient” constellations; astronomers divided one of the constellations (Argo) into 3 parts.
👉“Modern” constellations — like the Peacock, Telescope, and Giraffe — were identified by later astronomers of the 1500s, 1600s, and 1700s who used telescopes and who were able to observe the night sky in the southern hemisphere. These scientists “connected” the dimmer stars between the ancient constellations. There are 38 modern constellations.
👉 In 1930 the International Astronomical Union officially listed 88 modern and ancient constellations (one of the ancient constellations was divided into 3 parts) and drew a boundary around each. The boundary edges meet, dividing the imaginary sphere — the celestial sphere — surrounding Earth into 88 pieces. Astronomers consider any star within a constellation boundary to be part of that constellation, even if it is not part of the actual picture.
👉Puzzle of the night sky’s constellation boundaries.
Are all stars part of a constellation?
No, there are billions of stars, and only a fraction of them make up the shapes of our constellations — these are the stars that are easily seen with the unaided eye. Ancient observers connected these stars into the star pictures.
👉All stars, however, fall within the boundaries of one of the 88 constellation regions. As astronomers studied the night sky with modern telescopes, they were able to discern stars in the dark spaces around the constellations — stars that were not part of the original star pictures. You can see some of these stars by observing the sky on a dark night. If you look at the sky with binoculars, you will see even more stars. If you have a telescope, you will see even more! All the stars you see belong to one special group of stars - the stars in our own galaxy, the Milky Way.
@universalsciencefacts
🔥 Did you know this?
👉The two largest planets, Jupiter and Saturn, have nearly the same chemical makeup as the Sun; they are composed primarily of the two elements hydrogen and helium, with 75% of their mass being hydrogen and 25% helium.
👉On Earth, both hydrogen and helium are gases, so Jupiter and Saturn are sometimes called gas planets.But, this name is misleading. Jupiter and Saturn are so large that the gas is compressed in their interior until the hydrogen becomes a liquid. Because the bulk of both planets consists of compressed, liquefied hydrogen,we should really call them liquid planets
👉Under the force of gravity, the heavier elements sink toward the inner parts of a liquid or gaseous planet. Both Jupiter and Saturn, therefore, have cores composed of heavier rock, metal, and ice, but we cannot see these regions directly.
👉In fact, when we look down from above, all we see is the atmosphere with its swirling clouds We must infer the existence of the denser core inside these planets from studies of each planet’s gravity.
@universalsciencefacts
👉The two largest planets, Jupiter and Saturn, have nearly the same chemical makeup as the Sun; they are composed primarily of the two elements hydrogen and helium, with 75% of their mass being hydrogen and 25% helium.
👉On Earth, both hydrogen and helium are gases, so Jupiter and Saturn are sometimes called gas planets.But, this name is misleading. Jupiter and Saturn are so large that the gas is compressed in their interior until the hydrogen becomes a liquid. Because the bulk of both planets consists of compressed, liquefied hydrogen,we should really call them liquid planets
👉Under the force of gravity, the heavier elements sink toward the inner parts of a liquid or gaseous planet. Both Jupiter and Saturn, therefore, have cores composed of heavier rock, metal, and ice, but we cannot see these regions directly.
👉In fact, when we look down from above, all we see is the atmosphere with its swirling clouds We must infer the existence of the denser core inside these planets from studies of each planet’s gravity.
@universalsciencefacts
Guys ,I have planned to write brief explanation about single topic in short and precise pdf which helps you to understand facts about what you don't have enough information about or less concern with them.Therefore here I have given you topics to choose .
Anonymous Poll
45%
Constellation
59%
Earth by 2100 with science and technologies transformations
48%
Where did human being creature arose (Theory of evolution )
One more day left for the voting .Chose what's your interest to know from these indeed.Good luck !
⚛neutron star is the collapsed core of a massive supergiant star, which had a total mass of between 10 and 25 solar masses, possibly more if the star was especially metal-rich.
⚛Except for black holes, and some hypothetical objects (e.g. white holes, quark stars, and strange stars), neutron stars are the smallest and densest currently known class of stellar objects.
⚛ Neutron stars have a radius on the order of 10 kilometres (6.2 mi) and a mass of about 1.4 solar masses.
⚛They result from the supernova explosion of a massive star, combined with gravitational collapse, that compresses the core past white dwarf star density to that of atomic nuclei.
@universalsciencefacts
⚛Except for black holes, and some hypothetical objects (e.g. white holes, quark stars, and strange stars), neutron stars are the smallest and densest currently known class of stellar objects.
⚛ Neutron stars have a radius on the order of 10 kilometres (6.2 mi) and a mass of about 1.4 solar masses.
⚛They result from the supernova explosion of a massive star, combined with gravitational collapse, that compresses the core past white dwarf star density to that of atomic nuclei.
@universalsciencefacts
👉black hole is a region of spacetime where gravity is so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it.[1] The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.
👉The boundary of no escape is called the event horizon. Although it has an enormous effect on the fate and circumstances of an object crossing it, according to general relativity it has no locally detectable features.In many ways, a black hole acts like an ideal black body, as it reflects no light.
👉Moreover, quantum field theory in curved spacetime predicts that event horizons emit Hawking radiation, with the same spectrum as a black body of a temperature inversely proportional to its mass. This temperature is on the order of billionths of a kelvin for black holes of stellar mass, making it essentially impossible to observe directly.
@universalsciencefacts
👉The boundary of no escape is called the event horizon. Although it has an enormous effect on the fate and circumstances of an object crossing it, according to general relativity it has no locally detectable features.In many ways, a black hole acts like an ideal black body, as it reflects no light.
👉Moreover, quantum field theory in curved spacetime predicts that event horizons emit Hawking radiation, with the same spectrum as a black body of a temperature inversely proportional to its mass. This temperature is on the order of billionths of a kelvin for black holes of stellar mass, making it essentially impossible to observe directly.
@universalsciencefacts
👉Scientists are working on the way they could read someone else's mind with the help of FMRI(Functional Magnetic Resonance Imaging)scans which uses sending radio wave to the brain and scan where the information is stored and interpreted by the help of the signals sent back by the neurons .
👉With the help of this technologies some one could be able to read someone else's mind . In addition the technology is hoped to identify suspect to be a criminal whether he or she is telling lies or not with this FMRI scans.
👉All this we are advance to reduce crimes and help different patients who couldn't even communicate with someone else because of stroke or paralysis .U may be saying this may cause privacy problem any one could read someone else's mind but the process requires a close contact with the one who is requested for reading.
🤔Do you think the technology is helpful or disastrous ?Give you suggestions on the comment box .
@universalsciencefacts
👉With the help of this technologies some one could be able to read someone else's mind . In addition the technology is hoped to identify suspect to be a criminal whether he or she is telling lies or not with this FMRI scans.
👉All this we are advance to reduce crimes and help different patients who couldn't even communicate with someone else because of stroke or paralysis .U may be saying this may cause privacy problem any one could read someone else's mind but the process requires a close contact with the one who is requested for reading.
🤔Do you think the technology is helpful or disastrous ?Give you suggestions on the comment box .
@universalsciencefacts
Scientists are expecting futuristic Robots era ,in which they become totally automate ,conscious,and murderous . Regarding this most of people are debating on the idea of
Anonymous Poll
72%
Robots will be Smarter than we are
28%
Robots never be smarter than we are
🛰For the most part, the history of volcanic activity on the terrestrial planets conforms to the predictions of this simple theory.
🛰The Moon, the smallest of these objects, is a geologically dead world. Although we know less about Mercury, it seems likely that this planet, too, ceased most volcanic activity about the same time the Moon did.
🛰Mars represents an intermediate case. It has been much more active than the Moon, but less so than Earth.
🛰Earth and Venus, the largest terrestrial planets, still have molten interiors even today, some 4.5 billion years after their birth.
@universalsciencefacts
🛰The Moon, the smallest of these objects, is a geologically dead world. Although we know less about Mercury, it seems likely that this planet, too, ceased most volcanic activity about the same time the Moon did.
🛰Mars represents an intermediate case. It has been much more active than the Moon, but less so than Earth.
🛰Earth and Venus, the largest terrestrial planets, still have molten interiors even today, some 4.5 billion years after their birth.
@universalsciencefacts
Which of the following chronological dating way of calculating age of the planet surface is nearly accurate
Anonymous Quiz
37%
Measuring the depth of crater formed on the surfaces due to planet weathering
63%
Measuring ages of individual rock using radioactive property of elements
#Timetravel
👉An event with no beginning and ending is called a #loop. Even though it seems possible to travel back in time back to past .There are temporal paradoxes that would seem not possible to travel back in time .Let's make a quick review through the common temporal paradoxes.
Grandfather paradox:
👉Suppose, you made a sincere request for a sports bike to your family. Everyone agreed except your grandfather. Then you became extremely angry and you got the instinct to kill him. And you used your genius mind and created a time machine and travelled to the past at
that time when your grandpa was young, and you killed him.
👉It seems you will feel satisfied and happy because you killed your future
villain. But the main twist is that how you killed him?🤔 Because you killed
your grandfather even before your father was born. So it means you are not born. 🙄Which further implies you didn’t create a Time machine,which means you didn’t kill grandfather. And in the end, it means you don’t even exist and grandfather is still alive.As your grandfather is alive, he got married, and then your father was
born, and then you came into existent. Now you desired to have a
sports bike......
👉it sounds funny, but you have created an infinity loop which won’t end. While this loop is a time paradox, and this time paradox is termed as Grandfather Paradox.
Bootstrap paradox:
👉Now imagine, you heard a knock on your door. There was a parcel lying on the floor. You opened it and found a procedure and formula to build a time machine. After your perseverance, you created a time machine.Then to test it you travelled into the past and gifted the procedure and formula to your younger self. Then that younger self again created the time machine and gifted it to its younger self.So this creates an infinite loop. So basically who kept that parcel at the beginning? This time paradox is known as a Bootstrap paradox.
Predestination paradox:
👉Now Imagine, you are the man and created a time machine and travelled into the past. There you met a lady (who is going to be your mother in future) and fell in love with her. Years later, you both got married and had a baby. This baby is going to be the man who actually travelled back in time in the first place.
👉In simple words, you and your mother got married and had a son, and ultimately you found that the son is you! (It’s like, A marries B, and have so A). This paradox is known as predestination paradox.And finally,
Twin paradox:
👉Suppose imagine, ‘A’ and ‘B’ are twin brothers and say ‘B’ leaves the planet Earth and travels in space at high speed. And after 10 years B returns to Earth. Will ‘A’ and ‘B’ be of the same age? So the answer is no?
👌I need you to answer the last question with brief explanation on the comment box.🙏
@universalsciencefacts
#Timetravel
👉An event with no beginning and ending is called a #loop. Even though it seems possible to travel back in time back to past .There are temporal paradoxes that would seem not possible to travel back in time .Let's make a quick review through the common temporal paradoxes.
Grandfather paradox:
👉Suppose, you made a sincere request for a sports bike to your family. Everyone agreed except your grandfather. Then you became extremely angry and you got the instinct to kill him. And you used your genius mind and created a time machine and travelled to the past at
that time when your grandpa was young, and you killed him.
👉It seems you will feel satisfied and happy because you killed your future
villain. But the main twist is that how you killed him?🤔 Because you killed
your grandfather even before your father was born. So it means you are not born. 🙄Which further implies you didn’t create a Time machine,which means you didn’t kill grandfather. And in the end, it means you don’t even exist and grandfather is still alive.As your grandfather is alive, he got married, and then your father was
born, and then you came into existent. Now you desired to have a
sports bike......
👉it sounds funny, but you have created an infinity loop which won’t end. While this loop is a time paradox, and this time paradox is termed as Grandfather Paradox.
Bootstrap paradox:
👉Now imagine, you heard a knock on your door. There was a parcel lying on the floor. You opened it and found a procedure and formula to build a time machine. After your perseverance, you created a time machine.Then to test it you travelled into the past and gifted the procedure and formula to your younger self. Then that younger self again created the time machine and gifted it to its younger self.So this creates an infinite loop. So basically who kept that parcel at the beginning? This time paradox is known as a Bootstrap paradox.
Predestination paradox:
👉Now Imagine, you are the man and created a time machine and travelled into the past. There you met a lady (who is going to be your mother in future) and fell in love with her. Years later, you both got married and had a baby. This baby is going to be the man who actually travelled back in time in the first place.
👉In simple words, you and your mother got married and had a son, and ultimately you found that the son is you! (It’s like, A marries B, and have so A). This paradox is known as predestination paradox.And finally,
Twin paradox:
👉Suppose imagine, ‘A’ and ‘B’ are twin brothers and say ‘B’ leaves the planet Earth and travels in space at high speed. And after 10 years B returns to Earth. Will ‘A’ and ‘B’ be of the same age? So the answer is no?
👌I need you to answer the last question with brief explanation on the comment box.🙏
@universalsciencefacts
#Timetravel