July 05, 2026 05:08 pm (IST)
Follow us:
facebook-white sharing button
twitter-white sharing button
instagram-white sharing button
youtube-white sharing button
'Why can't citizens protest against the government? They are being made slaves by slapping cases': Bombay HC slams Mumbai Police, quashes activist's externment | 'First he cheats on me...': Siya Goyal's old pub video goes viral amid probe into fiancé Ketan Agarwal's alleged murder | Ronaldo's goal, Ramos' last-gasp winner send Portugal past Croatia, set up Spain clash | India-US trade deal almost done! Piyush Goyal hints at breakthrough | Ram Mandir donation scam: Champat Rai points finger at his own driver | PM Modi welcomes Japanese PM Sanae Takaichi as India-Japan ties enter a new era | 'Not an isolated incident': India slams Pakistan after 125-year-old historic Gurdwara is demolished | Ram Mandir donation theft: Six accused were employed by Varanasi-based security firm, probe reveals | Ayodhya Ram Temple donation theft: Probe says majority of money was allegedly stolen during Kumbh Mela | Commercial LPG price slashed by Rs 183.50 from July 1; check new rates in Delhi, Mumbai, Kolkata and Chennai

Google pays homage to Ferdinand Monoyer on his birth anniversary

| | May 09, 2017, at 03:31 pm
Mountain View, May 9 (IBNS): Google on Tuesday paid homage to French ophthalmologist Ferdinand Monoyer with a doodle, on the latter's 181st birth anniversary.

Monoyer is known for the introduction of dioptre, which is a unit of measurement of the optical power of a lens or curved mirror, which is equal to the reciprocal of the focal length measured in metres (that is, 1/metres).

He is also credited with the invention of Monoyer chart, used to test visual acuity.

The doodle features animated eyes and the acuity chart.


image: Google

#FerdinandMonoyer #Ophthalmologist #GoogleDoodle #Dioptre #MonoyerChart #AcuityChart

Support Our Journalism

We cannot do without you.. your contribution supports unbiased journalism

IBNS is not driven by any ism- not wokeism, not racism, not skewed secularism, not hyper right-wing or left liberal ideals, nor by any hardline religious beliefs or hyper nationalism. We want to serve you good old objective news, as they are. We do not judge or preach. We let people decide for themselves. We only try to present factual and well-sourced news.

Support objective journalism for a small contribution.
Related Images
In Images: Kolkata Celebrates Jagadhatri Puja
In Images: Kolkata Celebrates Jagadhatri Puja Oct 31, 2025, at 12:43 am
Darjipara Mitra Bari Gears Up for Its Centuries-Old Jagadhatri Puja in Kolkata
Darjipara Mitra Bari Gears Up for Its Centuries-Old Jagadhatri Puja in Kolkata Oct 30, 2025, at 01:16 am
In Images: Devotees in Kolkata bid farewell to Goddess Durga with sindoor khela and immersion on Vijayadashami
In Images: Devotees in Kolkata bid farewell to Goddess Durga with sindoor khela and immersion on Vijayadashami Oct 03, 2025, at 12:19 am
Related Videos
Moments from the cherished life of fashion designer Rohit Bal who is no more Nov 04, 2024, at 05:17 pm
Milan Fashion Week: Models walk for designer Cormio show Feb 25, 2023, at 07:49 pm
Lakme Fashion Week 2022 Oct 29, 2022, at 11:48 pm