stuffilearned

[stuffilearned]

The green flash - A rare optical phenomenon

The green flash is an interesting and a rare meteorological optical phenomenon. The green flash is a green spot or flash visible for only few seconds at the top edge of the sun during sunrise or sunset. Watch the video to know more about the green flash and the reason behind it.

#space stuffilearned thegreenflash sun opticalphenomenon greenspot greenflash mirage refraction sunrise sunset meteorological thegreenray LeR

[stuffilearned]

How does pulse oximeter work - Pulse oximeter

How does pulse oximeter work? - The pulse oximeter is a device used to measure oxygen saturation in the blood. Do you know how does pulse oximeter work? A typical oximeter consists of two light-emitting diodes (LEDs) and a sensor. Check the video to know how does pulse oximeter work.

#medicaldevice stuffilearned pulseoximeter oxygensaturation blood howdoespulseoximeterwork hemoglobin oxyhemoglobin deoxyhemoglobin infraredl

[stuffilearned]

Mirror neurons - Why you yawn or smile back when someone does it?

Mirror neurons are a type of brain cell that activates when we perform an action and also activates when we witness someone else perform the same action. Mirror neurons are first discovered in the brains of macaque monkeys. Mirror neurons are discovered by the italian researchers Giacomo Rizzolatti, professor Vittorio Gallese and their team. Watch the video for more details to know more about Mirror neurons.

#mirrorneurons stuffilearned brain science humanbody neurons giacomorizzolatti vittoriogallese neurophysiology actionunderstanding intentionu

[stuffilearned]

Eye Floaters - Why do we get eye floaters?

Eye floaters are the strange shapes floating in our vision from time to time with different shapes, sizes, and forms. Eye floaters are not optical illusions. what are Eye floaters, and what causes Eye floaters in our eyes? Watch the video for more details.

#eyefloaters stuffilearned humanbody floaters muscaevolitantes mouchesvolantes bluesky eye eyes cornea retina vitreous vitreoushumor vitreou

[stuffilearned]

The Glass Delusion - A disorder that makes us think we are made of glass

The Glass Delusion was a regularly recorded peculiar condition, and it is an unusual psychiatric disorder. People with the glass delusion believed that their whole body or part of their body was made out of fragile glass. After peaking in the 16th century, the glass delusion disappeared by the end of the 17th century. Watch the video for more details about the glass delusion.

#theglassdelusion stuffilearned disorder diseases glassdelusion psychology psychiatric hippocrates humorism glass shatter alcmaeon theanatomy

[stuffilearned]

Why do we cry - The reason behind it

Though crying is one of the symptoms of sadness, do you know why do we cry? Crying has a lot of benefits to your mind and body. Watch the video for more details to know why do we cry.

#whydowecry humanbody stuffilearned science cry tears eyes vision basaltears reflextears psychictears emotionaltears emotions mind evolution

[stuffilearned]

Why can't humans walk straight when blindfolded? - Explained

Have you ever tried to walk straight with your eyes closed or while blindfolded? Try it and see, you can't walk straight. Yes, we walk in circles.  So, Why do we walk in circles when blindfolded? Watch the video for more details to why humans can't walk straight when blindfolded.

#humanbody stuffilearned science brain walkingincircles blindfold vestibularsystem proprioceptivesystem cognition straightahead skin muscles

[stuffilearned]

Moonquakes - Is the moon shrinking?

Just like Earth has Earthquakes, quakes on the Moon are called Moonquakes.  Apollo astronauts first discovered the Moonquakes. There are at least four kinds of Moonquakes.  Check the video for more details about the Moonquakes and its types.

#moonquakes space stuffilearned moon quakes earth apollo seismometer seismicactivity seismograph buzzaldrin gravitationalforce meteor deepmoo

[stuffilearned]

The Dunning Kruger effect - Are you as brilliant as you think?

The Dunning Kruger effect is a psychological phenomenon named after the psychologists David Dunning and Justin Kruger. The Dunning Kruger effect is a type of cognitive bias which describes that unskilled people overestimate their ability and believe that they are smarter and more capable than they really are. Watch the video for more details about the Dunning Kruger effect.

#dunningkruger psychology stuffilearned dunningkrugereffect cognitivebias mcarthurwheeler daviddunning justinkruger overestimate skill compet

[stuffilearned]

Pica - A disorder that urges you to eat non food items

Pica is a psychological and a compulsive eating disorder. People with Pica will crave or eat items that are not food and have no nutritional value. There is no specific way to prevent Pica. Pica is indeed a complex disorder as people may feel an urge to eat extremely harmful items. Watch the video for more details about Pica.

#pica stuffilearned disorder disease psychology eatingdisorder geophagia pagophagia trichophagia coprophagia amylogphagia hippocrates pregnan

[stuffilearned]

Sailing stones - Mystery behind the Sailing stones

Sailing stones - The mysterious stones that moves by itself baffled scientists for years since the early 1900s. They are called Sailing stones. Sailing stones are also called as sliding rocks, walking rocks, rolling stones, and moving rocks. Watch the video for more details on Sailing stones and how they move on their own.

#sailingstones stuffilearned strange mystery stones deathvalley california racetrackplaya deathvalleynationalpark geologicalphenomenon slidin

[stuffilearned]

Why we can't smell our own perfume - Nose blindness

Ever wondered why we can't smell our own perfume? It is because of a phenomenon called Nose blindness. Nose blindness is also called Olfactory Fatigue, Olfactory Adaptation and odor fatigue. It a way our brain reduces the scent intensity so that it can detect new scents. Watch the video for more details to know why we can't smell our own perfume and the reason behind.

#Why we can't smell our own perfume nose blindness stuffilearned stuff i learned human body nose-blind nose blind olfactory fatigue olfactory

[stuffilearned]

Calico cats facts - Why are they considered lucky?

Calico cats facts - Lets see some Calico cats facts. Calico cats are any cat breed with a tricolor coat that includes 25% to 75% white with large orange and black patches. Calico cats are not a particular breed of cat, and calico refers to the color of the cat's coat. Watch the video for more details on Calico cats facts.

#calicocats stuffilearned cats cat calicocat calico genetic science medical chromosome calicut india tricolor brindle klinefeltersyndrome eg

[stuffilearned]

Why are calico cats always female? - Genetics behind Calico cats

Do you know why calico cats are always female? Calico cats are tricolor cats, and it is because of genetics the calico cats always female. Watch the video for more details to know why calico cats are always female.

#calicocats stuffilearned science genetics gene cats cat medical genetic medical chromosome tricolor piebald barrbody supercoiling lyonizatio

[stuffilearned]

Ear pit - Why do we have Ear pit?

An Ear pit is a small dent, or a tiny hole found somewhere around or on the ears. Ear pit is a defect formed during birth, and scientist Van Heusinger first described it in 1864. Do you know why Ear pits are formed? Watch the video for more details on Ear pit.

#earpit stuffilearned humanbody science preauricularpits preauricularsinus preauricularfistula preauricularcyst preauriculartracts congenital

[stuffilearned]

Akinetopsia - An Inability to see the motion of an object

Akinetopsia is a rare neuropsychological disorder. A patient with Akinetopsia cannot perceive motion in their visual field but can see stationary objects without any issues. There are two types of Akinetopsia, and they are Inconspicuous akinetopsia and Gross akinetopsia.  Watch the video for more details on Akinetopsia.

#akinetopsia stuffilearned disorder disease brain neuropsychology neuron motion vision eye cerebralakinetopsia motionblindness inconspicuousa

[stuffilearned]

The diamond star in space - Lucy in the sky

The diamond star in space is a big chunk of crystallized carbon located in the constellation Centaurus. This enormous piece of the diamond star in space is also called BPM 37093 or V886 Centauri or Lucy. It is the largest diamond ever found but not on Earth, in space. Watch the video for more details.

#thediamondstar lucy stuffilearned space bpm37093 v886cenauri diamond largestdiamond centaurus whitedwarf pulse light sun earth star dwarfsta