TECHNOLOGY
In 1851, he created a lot of sensation by creating the Foucault pendulum, which was first exhibited in the Meridian of the Paris Observatory.
Google on Wednesday marked the 194th birth anniversary of French physicist Jean Bernard Léon Foucault with an interactive doodle.
The doodle is based on Foucault pendulum — a device that the physicist created in 1851 to confirm that the Earth rotated.
Born to a publisher in Paris on September 18, 1819, Foucault studied medicine, but had to give it up after developing a fear of blood.
Soon after, he started his career as a physicist by assisting Alfred Donne and Hippolyte Fizeau.
He first made a name for himself when he proved that light travels more slowly through water than in air. The experiment came to be known as the Foucault–Fizeau experiment.
In 1851, he created a lot of sensation by creating the Foucault pendulum, which was first exhibited in the Meridian of the Paris Observatory.
It was the first demonstration of the Earth's rotation that did not involve celestial observations, and it sparked a "pendulum mania" across Europe and United States.
The original pendulum consisted of a 28kg brass-coated lead bob and was suspended from the dome of the Pantheon with a 67-metre long wire.
In 1852, Foucault named the gyroscope, a device for measuring and maintaining orientation. However, he did not invent the device.
In 1858, he devised a method of testing the mirror of a reflecting telescope to determine its shape — the so-called Foucault knife-edge test which is still used in amateur telescopes.
Foucault's achievements paved the way for his association with several top scientific socities in Europe, including the Bureau des Longitudes, the Royal Society of London and the Legion d'Honneur.
The physicist died of multiple sclelrosis on February 11, 1868 at the age of 48.
He has been buried in the Cimetière de Montmartre in Paris.
His name features on the Eiffel Tower along with 72 French scientists, engineers, and mathematicians whose names are engraved on the monument. The asteroid 5668 Foucault has also been named after him.
Who is Meghnad S? YouTuber and journalist who contested Delhi assembly polls 2025 from...
Does Sanya Malhotra's 'Mrs' promote a no-marriage culture among women?
BIG blow to Sundar Pichai as Google loses Rs 17501260000000 due to…
Caring for Ageing Parents? Essential tips to manage health, finances, and well-being
Meet Gautam Adani’s daughter-in-law Paridhi Adani: Know about her assets, career, family, and more
Jeet Adani-Diva Shah wedding: Inside pics from Gautam Adani's son's wedding festivity
Why has Premanand Maharaj stopped his morning yatras at 2 am?
Sonu Sood BREAKS SILENCE on arrest warrant against him in fraud case: 'It is sad that celebs...'
Akshata Murty once confronted her father and Infosys co-founder Narayana Murthy: 'My real dad is...'
Meet Alexis Wilkins, Trump's FBI chief pick Kash Patel's 'mystery girlfriend,' her profession is...
Fire breaks out at Mahakumbh Nagar camp, officials say no casualties reported so far
Who is Mohini Mohan Datta, mystery man set to get Rs 500 crore through Ratan Tata's will?
Cristiano Ronaldo makes shocking statement, breaks Portugal's hearts: 'I never thought about...'
Ludhiana court issues arrest warrant against Sonu Sood in fraud case
Happy Rose Day 2025: Significance of different coloured roses on Day 1 of Valentine's week
Salman Khan REVEALS why he avoids eating beef and pork: 'Main maanta hu meri maa...'
Shah Rukh Khan-Saif Ali Khan vs Aryan Khan-Ibrahim Khan: Who should be in KHNH2!
Why Israel's Benjamin Netanyahu gifted Donald Trump golden pager? It is a reference to...
Mob in Bangladesh destroys ousted PM Sheikh Hasina's family home
ISRO's EOS-06 satellite captures Phytoplankton concentration on global scale
IND vs ENG: Will Virat Kohli play in 2nd ODI vs England? Shubman Gill provides huge injury update
Who is Kiran Chaudhury? PCS officer caught in bribe case, just 4 years after posting
Jeet Adani-Diva Shah's wedding today: Know venue, gifts for guests and more
Meet woman, who works in Rs 163000 crore company, daughter of Hyderabad’s richest man
This is world's greenest railway station, 170 years old, home to over 7,000 plants, it's in....
As Sky Force nears Rs 150 crore, Nimrat Kaur treats househelp, her kids with movie screening
IND vs ENG: Shreyas Iyer creates history, becomes first player to achieve THIS massive milestone
Meet man, India's richest banker, who has bought Rs 202 crore property, his net worth is Rs...
'Heard there was....': Former India head coach provides major update on Virat Kohli's injury
A New Geopolitical Era: India and Israel's Role in the Evolving Middle East
David Warner’s touching moment with fans after Dubai Capitals reaches final of DP World ILT20
India’s Largest Book Stall Network: PrashantAdvait Foundation’s Mission to Revive Reading Culture
Mawra Hocane stuns in pastel mint green lehenga at her wedding to Ameer Gilani
Deepinder Goyal's Zomato changes its name, CEO shares journey of company, it is now called...
Rose Day 2025: Know the date, history, significance of each rose colour ahead of Valentine's day
'BJP-led NDA works for Santushtikaran, not Tushtikaran': PM Modi in Rajya Sabha
Who is Belle Gibson? Australian wellness guru created fake cancer story and later...
DP World ILT20 2025: Dubai Capitals clinch last ball thriller against Desert Vipers to reach final
Jeet Adani-Diva Shah wedding: First pic from Gautam Adani's mansion OUT as wedding festivities begin
Sunita Williams’ Spacewalk: A Record-Breaking Mission and a Stunning Selfie from Space
IND vs ENG: Ravindra Jadeja creates history in Nagpur, surpasses James Anderson to become....
Can IAS officers change cadres after marriage? Here's what rules say
Pavan Kumar Joshi innovates unemployment benefits payment security
Anil Ambani's company's share price surges over 6 per cent after it earns profit of Rs...
Why Dale Bhagwagar is Bollywood's only PR guru
Meet Anjum Khan, wife of cricket star Shivam Dube, her net worth is Rs...
IAF Mirage 2000 fighter aircraft crashes in MP's Shivpuri during training sortie
Meet IAS Tina Dabi's mother, who cleared UPSC to become IES, later resigned due to...