The Green Flash – A rare optical phenomenon

Sunrise and Sunsets are always stunning to watch and some rare occurence during these events makes it more beauiful to watch. Yes, there is an interesting and a rare meteorological optical phenomenon called the green flash. It is a green spot or flash visible for only few seconds at the top edge of the sun…

Why do we cry – The reason behind it

Usually, we relate crying to sadness. But, do you know why we really cry? Experts believe crying may be an evolutionary trait. When our ancestors hurt themselves or felt upset, they cried. Their tears evolved as a way to send a message to people close to them that they needed help from others. The same…

Why do we feel better after crying?

Usually, humans tend to cry in tears when they are emotional. Negative emotions like sadness, grief, anger, suffering, mourning, or physical pain produce emotional tears. Even extreme happiness during times of intense humor and laughter also produces emotional tears. Whether we are really happy or sad, our limbic system in the brain feels it is…

Prince Rupert’s drop – A glass drop that can withstand bullets

Prince Rupert's Drops are one of the most spectacular physics demonstrations. The unique Prince Rupert's Drop is a glass structure so strong, it can even destroy bullets. They are produced by dropping red hot molten soda-lime or flint glass into cold water, quickly cooling in a process called quenching. The molten glass instantly solidifies like…

The Paris Catacombs – One of the largest underground necropolis(cemetery) in the world

Often described as City of Love and Light, Paris is a city known for its fashion, romance, arts, sophistication and fine-dining menus. Underneath the streets of sparkling lights and buidings, there is hundreds of miles of tunnels. Eerie and strange, there lies one of the largest underground necropolis(cemetery) in the world. It is called the…

Sonoluminescence – Can sound create light?

Have you ever heard about creating light which is extremely hot by using sound waves? Can we really do that? Scientists say yes !! Sonoluminescence is the emission of light from the collapsing bubbles in a liquid by using sound. Sound wavesRegular bubblesCavitation bubbles Sound waves are molecules that oscillate back and forth, creating areas…

The laughing death – Kuru

You might have heard someone say they died of laughing in their humourous situation. But people literally can die laughing due to a rare disease. It is called Kuru and it is a progressive and fatal nervous system disease. Kuru means trembling or to shake. As the illness progressed, the person will lose the ability…

Types of human sense – Are there more sense types other than the five basic sense?

Sight Also called Vision, it is the ability of the eyes to see. Smell Also called Olfaction, it is the ability of the nose to detect the smell. Taste Also called Gustation, it is the ability of the tongue to detect taste. Hearing Also called Audition, it is the ability of the ears to detect…

Why do we forget things when entering a room – The doorway effect

Sometimes, you might open the fridge only to realize why you opened it. Or ran to the bedroom to get something and forgot why you entered the room. This memory gap of forgetting why you entered a room is called "The Doorway Effect". It is a psychological phenomenon and also called as "Event Boundary"or "Location…

Welcome To Stuff I Learned!

At Stuff I Learned we share some interesting stuff that we learned about Science, Space, the latest technologies, diseases & disorders, and medical field. This is also a place where you can find some assorted contents about the human body, brain, curious events, physics, biology, and psychology. If you are curious about the above things,…