This media is not supported in your browser
VIEW IN TELEGRAM
What is the new autonomous world land speed record?
🏎 On April 27, 2022, a team PoliMOVE from Politecnico di Milano (Italy) and the University of Alabama (USA) operated an autonomous racecar the Dallara AV-21 at Space Florida’s Launch & Landing Facility at the Kennedy Space Center in Cape Canaveral.
✔️ The average speed of 309.3 km/h (192.2 mph) was measured over a 1 km stretch in opposite directions during consecutive runs, as required by the FIA International Sporting Code.
✔️ The peak speed achieved by PoliMOVE’s car was 311.9 km/h (193.8 mph).
❗️It’s the new autonomous world land speed record.
This experiment broke the previous record of 282.42 km/h (175.49 mph) by 26.88 km/h (16.71 mph).
Subscribe- t.me/askmenow
🏎 On April 27, 2022, a team PoliMOVE from Politecnico di Milano (Italy) and the University of Alabama (USA) operated an autonomous racecar the Dallara AV-21 at Space Florida’s Launch & Landing Facility at the Kennedy Space Center in Cape Canaveral.
✔️ The average speed of 309.3 km/h (192.2 mph) was measured over a 1 km stretch in opposite directions during consecutive runs, as required by the FIA International Sporting Code.
✔️ The peak speed achieved by PoliMOVE’s car was 311.9 km/h (193.8 mph).
❗️It’s the new autonomous world land speed record.
This experiment broke the previous record of 282.42 km/h (175.49 mph) by 26.88 km/h (16.71 mph).
Subscribe- t.me/askmenow
👍26👏7❤1😁1
What is memory and its major processes?
Memory refers to the processes that are used to acquire, store, retain, and later retrieve informationℹ️
There are 3️⃣ major processes involved in memory:
✔️encoding,
✔️storage,
✔️retrieval.
Human memory involves the ability to both preserve and recover information. However, this is not a flawless process. Sometimes people forget or misremember things. Things could be not properly encoded in memory in the first place.
Memory problems are often relatively minor annoyances like forgetting birthdays. However, they can also be a sign of serious diseases, like Alzheimer's and other kinds of dementia. These conditions affect a person's quality of life and ability to function.
Subscribe- t.me/askmenow
Memory refers to the processes that are used to acquire, store, retain, and later retrieve informationℹ️
There are 3️⃣ major processes involved in memory:
✔️encoding,
✔️storage,
✔️retrieval.
Human memory involves the ability to both preserve and recover information. However, this is not a flawless process. Sometimes people forget or misremember things. Things could be not properly encoded in memory in the first place.
Memory problems are often relatively minor annoyances like forgetting birthdays. However, they can also be a sign of serious diseases, like Alzheimer's and other kinds of dementia. These conditions affect a person's quality of life and ability to function.
Subscribe- t.me/askmenow
👍41🔥5🥰4🤯4❤3😱2👎1
What are the types of memory?
Researchers normally describe 4️⃣ kinds of memory.
📌Sensory memory is a very brief recall (about 3 seconds) of a sensory experience. Some compare sensory memory to a quick snapshot of what you just experienced that quickly disappears.
📌Short-Term Memory is that brief period of time where you can recall information you were just exposed to. It often encompasses periods from 30 seconds to several days, depending on who is using the term.
📌Working memory can be defined as the ability of our brains to keep a limited amount of information available long enough to use it. This type helps process thoughts and plans, as well as carries out ideas, combining information from your short-term memory and long-term memory.
📌Long-term memory encompasses memories that range from a few days to decades. In order for successful learning to take place, information has to move from the sensory or the short-term memory to the long-term memory.
Subscribe- t.me/askmenow
Researchers normally describe 4️⃣ kinds of memory.
📌Sensory memory is a very brief recall (about 3 seconds) of a sensory experience. Some compare sensory memory to a quick snapshot of what you just experienced that quickly disappears.
📌Short-Term Memory is that brief period of time where you can recall information you were just exposed to. It often encompasses periods from 30 seconds to several days, depending on who is using the term.
📌Working memory can be defined as the ability of our brains to keep a limited amount of information available long enough to use it. This type helps process thoughts and plans, as well as carries out ideas, combining information from your short-term memory and long-term memory.
📌Long-term memory encompasses memories that range from a few days to decades. In order for successful learning to take place, information has to move from the sensory or the short-term memory to the long-term memory.
Subscribe- t.me/askmenow
👍69🥰10❤7🔥1
How the brain changes with age?
Just as our bodies change as we age, changes are happening in our brains 🧠 as well.
🟢 The normal aging process brings subtle changes in cognitive abilities: committing new information to memory and recalling names and numbers can take longer. The ability to hold a piece of information in mind declines and certain aspects of attention can become more difficult with age.
🟢 At the structural level, the overall volume of the brain begins to shrink when we’re in our 30s or 40s, with the rate of shrinkage increasing around age 60. The volume loss isn’t nevertheless uniform throughout the brain.
🟢 Changes contributing to the shrinkage and cortical thinning of the aging brain happen at the level of individual neurons. The formation of new neurons — a process called neurogenesis — also declines with age.
🟢 As we age, our brains may also generate fewer chemical messengers, synthesizing less dopamine and serotonin.
Subscribe- t.me/askmenow
Just as our bodies change as we age, changes are happening in our brains 🧠 as well.
🟢 The normal aging process brings subtle changes in cognitive abilities: committing new information to memory and recalling names and numbers can take longer. The ability to hold a piece of information in mind declines and certain aspects of attention can become more difficult with age.
🟢 At the structural level, the overall volume of the brain begins to shrink when we’re in our 30s or 40s, with the rate of shrinkage increasing around age 60. The volume loss isn’t nevertheless uniform throughout the brain.
🟢 Changes contributing to the shrinkage and cortical thinning of the aging brain happen at the level of individual neurons. The formation of new neurons — a process called neurogenesis — also declines with age.
🟢 As we age, our brains may also generate fewer chemical messengers, synthesizing less dopamine and serotonin.
Subscribe- t.me/askmenow
👍48❤2🔥2
What is a “last in, first out” theory of brain aging?
Studying age-related changes researches formed a hypothesis that the areas of the 🧠 that experience the most dramatic changes with age are also among the last to mature in adolescence.
📍This theory was later confirmed and received the working name of “last in, first out”.
ℹ️ The phenomenon is explained by the fact that the first of the brain’s long-distance fibers to develop are the projection fibers connecting the cortex to lower parts of the brain and spinal cord. Fibers connecting diffuse areas within a single hemisphere — called association fibers — are the last to reach maturity and show the steepest functional declines with age.
Subscribe- t.me/askmenow
Studying age-related changes researches formed a hypothesis that the areas of the 🧠 that experience the most dramatic changes with age are also among the last to mature in adolescence.
📍This theory was later confirmed and received the working name of “last in, first out”.
ℹ️ The phenomenon is explained by the fact that the first of the brain’s long-distance fibers to develop are the projection fibers connecting the cortex to lower parts of the brain and spinal cord. Fibers connecting diffuse areas within a single hemisphere — called association fibers — are the last to reach maturity and show the steepest functional declines with age.
Subscribe- t.me/askmenow
👍28❤4🤔2
What is the best physical activity to reverse aging of the brain?
Scientists are learning every day how adopting a healthy lifestyle can delay or minimize the negative consequences of brain aging.
Analyzing the role of different physical activities, German researchers decided to compare conventional fitness to…dancing 💃🕺🏻.
❗️The conclusions were impressive: compared to conventional physical exercises, dancing led to larger volume increases in more brain areas, including the cingulate cortex, insula, corpus callosum and sensorimotor cortex.
❗️Only dancing was associated with an increase in plasma Brain-derived neurotrophic factor (BDNF, a key mediator of neuronal plasticity in the adult) levels.
✅ Scientists assume that these positive structural brain changes can later lead to cognitive benefits.
✅ Challenging dance programs are thus highly recommended as an effective measure to counteract detrimental effects of aging on the brain.
Subscribe- t.me/askmenow
Scientists are learning every day how adopting a healthy lifestyle can delay or minimize the negative consequences of brain aging.
Analyzing the role of different physical activities, German researchers decided to compare conventional fitness to…dancing 💃🕺🏻.
❗️The conclusions were impressive: compared to conventional physical exercises, dancing led to larger volume increases in more brain areas, including the cingulate cortex, insula, corpus callosum and sensorimotor cortex.
❗️Only dancing was associated with an increase in plasma Brain-derived neurotrophic factor (BDNF, a key mediator of neuronal plasticity in the adult) levels.
✅ Scientists assume that these positive structural brain changes can later lead to cognitive benefits.
✅ Challenging dance programs are thus highly recommended as an effective measure to counteract detrimental effects of aging on the brain.
Subscribe- t.me/askmenow
👍50❤9🔥7👏3
Who are you if your eye is as big as your brain?
Meet the tarsier, tiny nocturnal primate from Southeast Asia.
This relatively unknown species is often cited as having huge eyes for their body size.
🔶With a body length of some 10-12 centimeters, the tarsier’s eye width can reach 1,6 centimeters.
🔶Each eye, enormous in proportion to the rest of the body, is the same volume as the animal's brain.
🔶In terms of size the tarsier eyes also rival the eyes of orang-utans, other primates whose body is several dozens of times larger than that of the tarsier.
Mostly active at night, tarsiers lack the reflective feature of most nocturnal animals, so having very large eyes helps to maximize their sensitivity in low light.
Tarsiers are also equipped with stunning jumping, leaping, and climbing skills.
Subscribe- t.me/askmenow
Meet the tarsier, tiny nocturnal primate from Southeast Asia.
This relatively unknown species is often cited as having huge eyes for their body size.
🔶With a body length of some 10-12 centimeters, the tarsier’s eye width can reach 1,6 centimeters.
🔶Each eye, enormous in proportion to the rest of the body, is the same volume as the animal's brain.
🔶In terms of size the tarsier eyes also rival the eyes of orang-utans, other primates whose body is several dozens of times larger than that of the tarsier.
Mostly active at night, tarsiers lack the reflective feature of most nocturnal animals, so having very large eyes helps to maximize their sensitivity in low light.
Tarsiers are also equipped with stunning jumping, leaping, and climbing skills.
Subscribe- t.me/askmenow
👍32🤯10❤7🥰2👏2
What are the animals with the largest eyes?
Besides the tarsier, let us present you some other animals that are famous for their huge eyes.
The colossal squid is the record holder in the category of absolute eye size. Each eye of this creature, residing in the deepest waters of the World ocean, is up to 40 centimeters in diameter - the size of a soccer ball. The animal is also the largest invertebrate on the planet.
The ostrich has the largest eyes of any land animal. Their eyes have a diameter of 5 centimeters, making them about the size of a pool ball and five times larger than human’s. The eyes of the ostrich are larger than its brain.
The chameleon isn't just the master of disguise; it has large and the most colorful eyes among the animals. It can rotate its eyes a complete 360 degrees and switch their vision between binocular and monocular.
Owls have extremely large eyes, but they can’t move them. Owls are the only animals that have better night vision than felines.
Subscribe- t.me/askmenow
Besides the tarsier, let us present you some other animals that are famous for their huge eyes.
The colossal squid is the record holder in the category of absolute eye size. Each eye of this creature, residing in the deepest waters of the World ocean, is up to 40 centimeters in diameter - the size of a soccer ball. The animal is also the largest invertebrate on the planet.
The ostrich has the largest eyes of any land animal. Their eyes have a diameter of 5 centimeters, making them about the size of a pool ball and five times larger than human’s. The eyes of the ostrich are larger than its brain.
The chameleon isn't just the master of disguise; it has large and the most colorful eyes among the animals. It can rotate its eyes a complete 360 degrees and switch their vision between binocular and monocular.
Owls have extremely large eyes, but they can’t move them. Owls are the only animals that have better night vision than felines.
Subscribe- t.me/askmenow
👍39🤩9🔥4👏2😁2❤1
What are the eclipses and occultations?
✔️An occultation is a complete obscuration of the light of an astronomical body, most commonly a star, by another astronomical body, such as a planet or a satellite, without any interaction between the bodies involved. This is purely apparent and related to the observer. Hence, a total solar eclipse is the occultation of the Sun☀️ by the Moon🌕.
✔️An eclipse is the result of the total or partial masking of a celestial body by another along observers’ line of sight and regardless of their position.
Solar eclipses result from the 🌕 blocking the ☀️ relative to the 🌏; thus 🌏, 🌕 and ☀️ all lie in one line.
Lunar eclipses work the same way in a different order: 🌕, 🌏 and ☀️ all in one line, the Earth’s shadow hiding the Moon from view.
This phenomenon is visible to any observer of the Moon, regardless of its position on the surface of the Earth or in space.
Subscribe- t.me/askmenow
✔️An occultation is a complete obscuration of the light of an astronomical body, most commonly a star, by another astronomical body, such as a planet or a satellite, without any interaction between the bodies involved. This is purely apparent and related to the observer. Hence, a total solar eclipse is the occultation of the Sun☀️ by the Moon🌕.
✔️An eclipse is the result of the total or partial masking of a celestial body by another along observers’ line of sight and regardless of their position.
Solar eclipses result from the 🌕 blocking the ☀️ relative to the 🌏; thus 🌏, 🌕 and ☀️ all lie in one line.
Lunar eclipses work the same way in a different order: 🌕, 🌏 and ☀️ all in one line, the Earth’s shadow hiding the Moon from view.
This phenomenon is visible to any observer of the Moon, regardless of its position on the surface of the Earth or in space.
Subscribe- t.me/askmenow
🔥22👍17🤔3❤1👏1
How many solar or lunar eclipses occur in one calendar year?
The answer very much depends on the year.
One calendar year has a minimum of 4️⃣ eclipses – 2️⃣ solar eclipses and 2️⃣ lunar eclipses.
Most years – such as 2022 – have only 4️⃣ eclipses, although there are years with 5️⃣ eclipses (2013, 2018 and 2019), or 6️⃣ eclipses (2011 and 2020).
❗️It is very rare to have 7️⃣ eclipses in one calendar year. The last time it happened was in 1982 and the next time will be 2038.
Any calendar year presenting the maximum of 7️⃣ eclipses must have the first eclipse coming in early January, in order to leave enough room for the seventh eclipse to take place in late December. Then the middle part of the year has to stage three eclipses within a single lunar month – the period of time between successive new moons or full moons with a mean duration of 29.53059 days.
Subscribe- t.me/askmenow
The answer very much depends on the year.
One calendar year has a minimum of 4️⃣ eclipses – 2️⃣ solar eclipses and 2️⃣ lunar eclipses.
Most years – such as 2022 – have only 4️⃣ eclipses, although there are years with 5️⃣ eclipses (2013, 2018 and 2019), or 6️⃣ eclipses (2011 and 2020).
❗️It is very rare to have 7️⃣ eclipses in one calendar year. The last time it happened was in 1982 and the next time will be 2038.
Any calendar year presenting the maximum of 7️⃣ eclipses must have the first eclipse coming in early January, in order to leave enough room for the seventh eclipse to take place in late December. Then the middle part of the year has to stage three eclipses within a single lunar month – the period of time between successive new moons or full moons with a mean duration of 29.53059 days.
Subscribe- t.me/askmenow
👍31
This media is not supported in your browser
VIEW IN TELEGRAM
How does an occultation look like?
Enjoy a fascinating video that shows the occultation of Saturn by the Moon.🤩
15 years ago, in May 2007, using a ground-based telescope, an amateur astronomer Jan Koet had a chance to film the occultation of the second largest planet in the solar system by the Moon.
The author of the timelapse explains that he made alterations to accentuate the luminosity of Saturn.
The sequence is twice as fast as in reality.
Subscribe- t.me/askmenow
Enjoy a fascinating video that shows the occultation of Saturn by the Moon.🤩
15 years ago, in May 2007, using a ground-based telescope, an amateur astronomer Jan Koet had a chance to film the occultation of the second largest planet in the solar system by the Moon.
The author of the timelapse explains that he made alterations to accentuate the luminosity of Saturn.
The sequence is twice as fast as in reality.
Subscribe- t.me/askmenow
👍30🤩8🔥3😁1
What is a moon and its main criteria?
We have already specified the main features of a star and a planet, let’s now also clarify what a moon is.
It would be incorrect to limit the definition of a 🌕 as any celestial object that revolves around a planet, because that would mean dust particles also fall under that category.
According to the International Astronomical Union (IAU), to be called a moon, a celestial body must satisfy the following 3️⃣ criteria:
✅ It must be in a heliocentric orbit (it must revolve around its planet, and together they both must revolve around the Sun).
✅ It should be roughly spherical in shape, but smaller than the planets (if its size is comparable to its host planet, then it would be a planet by itself, not a moon). Exception: captured asteroids don’t satisfy this criterion.
✅ It has to be massive enough to clear most of its orbit of debris so that it is the only dominant celestial body in its orbit.
Subscribe- t.me/askmenow
We have already specified the main features of a star and a planet, let’s now also clarify what a moon is.
It would be incorrect to limit the definition of a 🌕 as any celestial object that revolves around a planet, because that would mean dust particles also fall under that category.
According to the International Astronomical Union (IAU), to be called a moon, a celestial body must satisfy the following 3️⃣ criteria:
✅ It must be in a heliocentric orbit (it must revolve around its planet, and together they both must revolve around the Sun).
✅ It should be roughly spherical in shape, but smaller than the planets (if its size is comparable to its host planet, then it would be a planet by itself, not a moon). Exception: captured asteroids don’t satisfy this criterion.
✅ It has to be massive enough to clear most of its orbit of debris so that it is the only dominant celestial body in its orbit.
Subscribe- t.me/askmenow
👏22👍14❤7
How many moons have been discovered in our solar system?
In our system almost all major planets and even dwarf planets have moons.
Many are naturally born from the leftover gas and dust from the planet’s formation. Few others belonged to the Kuiper Belt and is believed to have been captured by gas giants.
Among the wide variety of celestial objects found in our solar system, we have 2️⃣1️⃣0️⃣ moons of varying sizes, shapes, and properties:
Earth 1️⃣ moon
Mars 2️⃣ moons
Jupiter 7️⃣9️⃣ moons
Saturn 8️⃣2️⃣ moons
Uranus 2️⃣7️⃣ moons
Neptune 1️⃣4️⃣ moons
Pluto 5️⃣ moons
Subscribe- t.me/askmenow
In our system almost all major planets and even dwarf planets have moons.
Many are naturally born from the leftover gas and dust from the planet’s formation. Few others belonged to the Kuiper Belt and is believed to have been captured by gas giants.
Among the wide variety of celestial objects found in our solar system, we have 2️⃣1️⃣0️⃣ moons of varying sizes, shapes, and properties:
Earth 1️⃣ moon
Mars 2️⃣ moons
Jupiter 7️⃣9️⃣ moons
Saturn 8️⃣2️⃣ moons
Uranus 2️⃣7️⃣ moons
Neptune 1️⃣4️⃣ moons
Pluto 5️⃣ moons
Subscribe- t.me/askmenow
👍36😱12🔥8❤3🥰3
What are the ultimate figures of moons in our solar system?
📍With just 12.4 km (7.7 miles) in diameter, Mars’ moon Deimos is one of the smallest known moons in our solar system.
📍With a diameter of 5,267 km (3,273 miles), Jupiter’s moon Ganymede is the largest moon in our solar system.
📍Saturn has the most number of moons: 82 moons orbit the ringed planet.
Subscribe- t.me/askmenow
📍With just 12.4 km (7.7 miles) in diameter, Mars’ moon Deimos is one of the smallest known moons in our solar system.
📍With a diameter of 5,267 km (3,273 miles), Jupiter’s moon Ganymede is the largest moon in our solar system.
📍Saturn has the most number of moons: 82 moons orbit the ringed planet.
Subscribe- t.me/askmenow
👍32🔥2❤1
What are the most used emojis in the world?
Around 92% of the world’s online population use emojis, according to the Unicode Consortium.
Being not a universal language, some of the 3,663 emojis appear far more often than others.
The crossword-Solver team analyzed 9 million geotagged tweets to see which emoji each country uses the most.
They turned this data, retrieved during the last two weeks of February 2022, into maps of the world to chart emoji usage across the globe.
Key Findings:
✔️ Most countries are either laughing or loving as face with tears of joy 😂 and red heart ❤️ are the first and second most used emojis worldwide.
✔️ Face with tears of joy 😂 is the most common emoji in 75 countries.
✔️Wordle-themed emojis 🟩 🟨 ⬜️ find their way into top ten most-used emojis in many Anglo-Saxon countries.
✔️Emojis are not a universal language. In China the clapping hands emoji 👏 suggests "making love", while sending thumbs up👍 to a Greek may cause offence.
Subscribe- t.me/askmenow
Around 92% of the world’s online population use emojis, according to the Unicode Consortium.
Being not a universal language, some of the 3,663 emojis appear far more often than others.
The crossword-Solver team analyzed 9 million geotagged tweets to see which emoji each country uses the most.
They turned this data, retrieved during the last two weeks of February 2022, into maps of the world to chart emoji usage across the globe.
Key Findings:
✔️ Most countries are either laughing or loving as face with tears of joy 😂 and red heart ❤️ are the first and second most used emojis worldwide.
✔️ Face with tears of joy 😂 is the most common emoji in 75 countries.
✔️Wordle-themed emojis 🟩 🟨 ⬜️ find their way into top ten most-used emojis in many Anglo-Saxon countries.
✔️Emojis are not a universal language. In China the clapping hands emoji 👏 suggests "making love", while sending thumbs up👍 to a Greek may cause offence.
Subscribe- t.me/askmenow
👍65🔥6👏5😁4❤1