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2022-06-04 08:42:37 How the “happy hormone” can impact our social interactions?

Dopamine is a chemical messenger - often known as the 'happy hormone' - that carries signals controlling mental and emotional responses in the brain.

In a new study, scientists showed that manipulating the levels of dopamine affected emotion recognition, which is fundamental to our everyday social interactions.

More specifically, the research showed that while people with low baseline levels of the chemical messenger became better at emotion recognition after receiving a dopamine boost, those with higher baseline levels actually became worse.

These findings suggest that dopamine may influence emotion recognition via its effects on temporal processing, providing new directions for future research on typical and atypical emotion recognition.

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2022-06-01 07:30:01 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.

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2022-05-31 07:30:00 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.

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2022-05-30 11:16:11 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 moons of varying sizes, shapes, and properties:

Earth moon

Mars moons

Jupiter moons

Saturn moons

Uranus moons

Neptune moons

Pluto moons

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2022-05-29 18:51:03 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 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.

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2022-05-28 12:07:51 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.

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2022-05-27 13:56:05 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 eclipses – solar eclipses and lunar eclipses.

Most years – such as 2022 – have only eclipses, although there are years with eclipses (2013, 2018 and 2019), or eclipses (2011 and 2020).

It is very rare to have 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 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.

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2022-05-26 13:16:57 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.

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2022-05-24 15:49:44 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.

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2022-05-23 17:07:04 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.

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