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theofficialastronomy101 · 3 days

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Look at all those stars!

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dimension20official · 9 months

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Our pal Hank Green joins Dimension 20 for Mentopolis (premiering Aug. 9th on Dropout) and will be bringing you lots of science facts - but here are the facts you WON’T hear during the show

#dimension 20 #behind the scenes #mentopolis #hank green #science #science facts

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thechanelmuse · 7 months

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Chile...

This needs to be the definition of dark science. I still don't know how I ended up on this side on twitter. But If you're curious about that process of porcupines giving birth 😬, it's featured in this video:

The Most Extreme Births in the Animal Kingdom

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#science #science facts #biology #physics

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the-briny-bulletin · 1 year

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W h a l e f a l l

C.W: Whale corpses

When a whale carcass floats down to the ocean floor in the abyssal zone, it creates an ecosystem called a 'whalefall', where a variety of deep marine life can live and be sustained for over 50 years.

This ecosystem has 4 stages:

Mobile Scavengers Stage

The first stage is when scavengers from around the plain gather to feast on the whales flesh - Typically by hagfish and sleeper sharks - until there is just bone.

This stage can last for months or up to 1.5 years.

Enrichment Opportunists Stage

This stage is when smaller scavengers - such as octopuses, crustaceans and molluscs - gather around the whale looking for tissue and bits of carcass left over from the first stage. This is also when osedax (boneworms) arrive and comsume the community of bacteria that eat the bone lipids.

This stage can last months or up to 5 years.

Sulfophilic Stage

In this stage the majority of scavengers have left and in its place are the boneworms and the community of chemosynthetic bacteria that break down the lipids in the bones and produces sulphide that can be consumed by other organisms like worms or shrimp.

This stage can last over 50 years.

Reef Stage

The final stage is when all the consumable material have been exhausted and the leftover bone creates a hard surface for abyssal filter feeders to latch onto. A 'reef' of sorts.

Whalefalls are one of many essential food-falls that sustain life at the bottom of the ocean, and are p cool i think anyway im done w my autism rant goodbye

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scienceisdope · 1 year

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A small amount of ethanol (or other fuel – see instructions) is swirled in a 15l water container. Excess ethanol is poured off and the vapour/air mixture is lit. It burns rapidly with a satisfying 'whoosh'. Whoosh Bottle.

Follow @scienceisdope for more science and daily facts.

Video credits:

First part “JamesMidgleyChem” (Youtube)

Second part @fchsscience

#science #interesting #facts #physics #chemistry #science facts #interesting facts #science experiments

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spacepandora · 2 months

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TYPES OF GALAXIES, PART 5:

Irregular Galaxies

The Hubble Space Telescope captured this image of NGC 5264, an irregular dwarf galaxy.

Irregular galaxies tend to have unusual shapes, like toothpicks, rings, or little groupings of stars. Their sizes also range from dwarf irregular galaxies, with 100 million times the Sun's mass, to large ones weighing 10 billion solar masses.

Astronomers think these galaxies’ odd shapes are sometimes the result of interactions with others. For example, one spiral galaxy passing another with a stronger gravitational pull could lose some of its material, become distorted, and morph into a new shape. Some, like gas-rich dwarf galaxies, may be new, formed by material pulled from such encounters. Or perhaps when galaxies collide, they create a larger, oddly shaped mashup. Some scientists theorize that some large irregular galaxies could represent an intermediate step between spiral and elliptical galaxies.

Irregular galaxies born from galaxy interactions or collisions typically host a mix of older and younger stars, depending on the characteristics and composition of the original galaxies. Irregular galaxies may also hold significant amounts of gas and dust – essential ingredients for making new stars.

It's expected that when our galaxy collides with Andromeda, it will form an irregular galaxy.

#scifi geek #science #astronomy #space lovers #space exploration #science is magic #science is cool #science facts #science is fun #astronomy facts #space nerds #nasa

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noncompliantcyborg · 6 months

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Would you still love me if I was a worm?

I take portraits of marine animals... you can get archival quality prints of these ones here and here

These are Nereid worms, a type of segmented marine worm. They spend most of their life in the mud, but when it is time to spawn, their bodies transform into these incredible swimming epitokes. If you want more info about these critters, let me know!

#marine science #science #nereid #worm #polychaete #salish sea #marine biology #marine life #ocean #my marine life photos #my photography #science facts #marine worm #art prints #shop small #small art business

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simpsforscience · 4 months

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The strokes from Evolution's paintbrush🖌️ created a kaleidoscope of animal body symmetries. 🎨 Triradial symmetry is the rarest and most intriguing of them all !😃 Swipe➡️ to dive deeper🤿 into this rarest marvel of the animal world.To know more about the ancient animals, follow our monthly 🗓️series - Zoofabulous Time Trek!

📸Image credits:

1. Apokryltaros, Wikimedia commons

2. Aleksey Nagovitsyn, Wikimedia commons

3. Ghedoghedo, Wikimedia commons

4. Nobu Tamura, Wikimedia commons

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bethanydelleman · 2 months

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Here is another science fact that I love:

If you put rats in a bare cage with no companionship, plain food and water, and a bottle of cocaine, 100% of them will become addicted to cocaine.

If you put rats in a cage full of entertainment and friends, with exciting food, and a bottle of cocaine, only about 30% of rats will touch the drug after their first attempt.

For most creatures, it is only when nothing else in their life is stimulating that drugs are an attractive option.

(And yes, the cocaine was inside those hamster sippy bottles)

citation

#science facts #rat park #drugs usually are used when people's lives have serious problems #it's not a moral failing it's a social one #the question is actually how can you make their lives so awesome that they don't want to take drugs #addiction

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enigmaticmoonchild · 6 months

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Something that really stuck with me my first year of med school was learning that women are born with all of their eggs. They won't produce any more over the course of their life, and they grew with us whilst in the womb. That just tells me that everyone has kinda been with their mom since before their moms were even born. And I find that very sweet.

#just women #science #i love science #science facts #human biology #med school #medical school #med studyblr #med student #medicine #medical facts #chaotic academia #classic academia #academia #i love women

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theofficialastronomy101 · 2 days

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jenfoundabug · 2 months

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In case you’re wondering how crickets make the sounds they do. It’s a common misconception that they rub their legs together to make noise, but in reality most species use their wings!

The front wings (tegmina) are leathery and modified to have tiny ridges sort of like a file. When one wing is rubbed against the other (stridulation), they vibrate, generating sound. Additionally, the central part of the forewing (called the harp) is designed to resonate and amplify the sound. To make it extra loud, many crickets (like this one) face their burrows while chirping.

Crickets that sing are mainly males, and most females don’t even have the modified wings to make sound. The reason they sing has to do with mating - attracting females and repelling other males. Some species have multiple songs depending on the situation, including a “triumphal” call after successfully mating.

Species unknown

Sierra National Forest, California, US

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adharagranley-writer · 1 month

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Topic of the day: lesbian lizards.

There's a species of lizards that are entirely female (they really said no boys today honey) living in North America and Mexico. So how do they make baby lizards without males?

They reproduce by parthenogenesis (and are one of the few if not the only species of animal to reproduce only by this method). Parthenogenesis is a reproduction form where the female sexual cells develop without the masculine ones (eggs undergo a chromosome doubling after meiosis, developing into lizards without being fertilized), and it can happen in insects, birds, fishes and reptiles.

The desert grassland whiptail lizard (Aspidoscelis uniparens) does this, but! The ovulation is enhanced by female-female courtship and mating (pseudo-copulation) rituals that resemble the behavior other lizards that reproduce sexually.

So they are the absolute only-female lesbian queens.

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the-briny-bulletin · 11 months

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Moon jellyfish ! ! ! My Beloved ! ! !

Fun facts!!!

A group of sea jellies is called a Bloom !

The four hoof-shaped things you see at the top of a jelly are called 'gonads'!

The frilly tentacles you see in the middle are called 'oral arms' and is used to move the food it catches to its mouth!

Some species of jelly - such as the pink meanie - eat other jellies !

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scienceisdope · 11 months

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If you enjoyed this video, please give it a ❤️ and check out @scienceisdope for more science and daily facts.

Video credit: unknown (please DM me if you know/are the creator)

#science #physics #interesting #facts #science facts #physics facts #interesting facts

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spacepandora · 2 months

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TYPES OF GALAXIES, PART 4:

Lenticular Galaxies

The image below is Lenticular galaxy NGC 4886, photographed by the Hubble Space Telescope, containing primarily old stars but no spiral arms.

Lenticular galaxies are like a cross between spiral galaxies and elliptical galaxies. They have the central bulge and disk common to spiral galaxies but no arms. But like ellipticals, lenticular galaxies have older stellar populations and little ongoing star formation.

Scientists have a few theories about how lenticular galaxies evolved. One idea suggests these galaxies are older spirals whose arms have faded. Another proposes that lenticulars formed from mergers of spiral galaxies.

#scifi geek #science #astronomy #space lovers #sci fi and fantasy #space exploration #space facts #outer space #space #astronomy facts #science is magic #science is cool #science facts #science is fun #scifi

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