This is a story of an accidental discovery in science that has changed the world in the last 100 years.
A story of luck, foolishness and human endeavor that eventually led to the Nuclear bomb.
The story of Radioactivity💥💥
A fascinating Sunday Science History for you 🧵
The year was 1896. X-rays had been recently discovered. Light rays which were invisible but can go pass opaque objects like human skin greatly interested all scientists
French scientist Henri Becquerel wanted to research whether flourescent materials were emitting X rays as well
His chosen flourescent salt was Uranium!
Uranium was already a popular element which could take in light on exposure and then glow in the dark. People even used it in decorative kitchenware set as a luxury item!
Henri believed this glow was also due to X rays!
He wrapped light infused Uranium with photographic paper everyday & it reacted showing marks on the paper as expected
One night, he left the salt even without any light in non-flourescent form with the paper. The next day, to his surprise the paper had still shown a reaction
Uranium was emitting rays on its own continuously. Henri was shocked to find a material giving out energy by itself. A new source of energy was found!
He had discovered Radioactivity!
The work of taking this forward fell to a young graduate student.
Her name was Marie Curie!
Marie worked out of a small shed with no lab of her own. But, she was a genius & soon found that the air around Uranium could conduct electricity.
Pierre, her husband, left his own research to join Marie to support her as he knew she was onto something big!
They found 2 more elements which were even more radioactive. She named them Polonium after her country Poland & Radium after the Latin word for rays.
The findings in her 1898 paper shook the scientific community. Some elements could be the new energy sources for the world!! 💥💥
Interestingly, the Royal Swedish Academy announced the Nobel prize in Physics in 1903 for just Henri Becquerel & Pierre Curie
Yes, women were not really respected as scientists then. A few outrages later, Marie's name was added.
She became the first woman to get a Nobel prize
By this time, the world had really taken to Radioactivity. Any new form of energy should be good they thought. People believed it could cancer, arthritis & many more illnesses.
Radium was added to food and water & was advertised widely as 'a miracle cure' for everything.
And the glow was sought after as well.
Radium coated luminous watches became the rage. Radium spas came all over the west.
Hair treatments. Cosmetics. Impotence treatment. Bone strengthening.
Radium went into all of them. The world didn't know what trap it was falling into.
The impact started hitting only in the 1920s.
People started getting weird burns on large usage
Girls who were into cosmetics got Radium Jaws where their jaw bones became brittle and broke
Curie herself damaged her bone marrow leading to her death from massive radium exposure
Curie's research papers from 1898 were considered too dangerous to handle. They were locked in lead boxes and those who wished to see it had to wear protective clothing while entering the lab.
The great new promised energy source from 20 years ago was now a species killer!
Post the 1920s common Radium usage was stopped.
But, we all know what Uranium further led to. Nuclear Energy. Atomic bombs. It reset the world order.
It all started with an unassuming French scientist & a graduate student trying to understand why things glowed in the dark.
For a few decades, humans believed a killer radiation to be a miracle cure.
Today, we use many innovations of science without knowing their true benefits & dangers. Only time will tell what will be their true impact.
RT if you liked this story & follow for more history tales
• • •
Missing some Tweet in this thread? You can try to
force a refresh
What is happening in Manipur?
Who is fighting with whom?
Why?
The answer involves history & geography.
A simple explainer 🧵
Manipur is full of mountains. And one large valley in the middle called the Imphal Valley.
The mountains are mainly populated by the Kuki people and the Naga people.
The valley is populated by a third clan - the Meitei people.
2/n
Basis historical evidences, its the Meitei & the Naga who have lived in this area from earlier times. A large expansion of Kuki tribe happened during the British era who encouraged more Kuki settlers to balance power against other tribes as part of their 'Divide and Rule policy'
#OnThisDay July 15th, 1799 - A remarkable discovery of a single slab of stone changed our understanding of human history!
It was the finding of the 'Rosetta Stone' by Napoleon's army while trying to build a fort!
Join me on a history tour to visit this crazy story! 🧵
The story starts all the way around 3000 BC when the ancient Pharaonic Egyptian civilization started. We know the Pyramids & the Sphinx but another major relic from then are the Hieroglyphics - an advanced pictorial script that the Egyptians used in their wall inscriptions!
2/n
It was the main script for communication for those in the Nile Delta for more than 2000 years & it was mainly pictorial mixed with grammar and syllables.
But by 300 BC Egypt was under Greek rule, hieroglyphics was being slowly forgotten for the new Greek & Latin scripts 3/n
Lets say you've a simple well in your backyard. One day suddenly you find out that it's hiding a 1000 yr old historic monument!
Imagine the shock & thrill you'll feel as it unravels
Join me to hear one such actual wonder story in Ep3 of #ArtTreasuresofIndia
Rani Ki Vav! 🧵
First the story. 11thC AD. Modern day Gujarat was ruled by the Chaulukya Dynasty with Bhima I as it's king & Udayamati as it's queen. The landscape was part desert & arid like. Water management was a key priority & creating water bodies was a very royal act! 2/n
As Bhima I died, Udayamati was grieving him. It was the time when everyone built temples. But Udayamati decided to build an inverted temple of sorts. 65m long & 20m wide and 28m deep strucutre!
A step well built by the queen in memory of her king - Rani Ki Vav!
This time we travel back 1000 years ago to look at an artwork of astounding beauty commissioned by Rajendra Chola, the all conquering Chola emperor
Join me on a tour to visit the 'Chandesa Anugraha Murthi' - an Indian art marvel
🧵
First the story. In the Chola country, along the banks of the river Vanni in a small village a pious man Yajnadatta is blessed with a son who is named Vicharasarman.
Vicharasarman was very intelligent & one day he sees the village cowherd beating the cows.
2/n
Angry at him, Vicharasarman takes upon himself to tend the village's cows & his love ends up producing a bounty of milk.
Seeing the excess milk going waste, he builds a sand Linga & starts bathing it with the milk everyday & meditates upon Lord Shiva in front of it
3/n
India is facing a poor monsoon this year with many states with deficit rainfall 😰
One of the main reasons for this worrisome situation is the 'El Nino' weather system which has set in this year
Join me in this Geography Explainer on what El Nino is & how it impacts you! 🧵
First lets understand how monsoons form due to winds from the pacific ocean. The Pacific covers almost half the surface area of earth & affects global climate
In a normal year, warm winds blow across the pacific in western direction - from South America to Aus to Asia
2/n
As summer progresses, these warm winds heat up the ocean near India which leads to more evaporation in these waters & leads to formation of the monsoon cloud systems & we promptly get monsoon rains across the country at the start of June