Google Doodle honours SPL Sorensen who introduced pH scale
New Delhi, May 29 : Google on Tuesday celebrated Danish chemist Soren Peder Lauritz Sorensen who introduced the pH scale to the world with an interactive Doodle.
Sorensen's method of expressing acidity -- the negative logarithm of hydrogen ion concentration (pH) -- still has a wide range of real-world uses.
For example, in agriculture, the pH value can indicate the moisture associated with a soil, which can reveal what crops are suitable for the soil and what adjustments farmers must make to adapt it for growing any other crops.
Born in Havrebjerg in 1868, Sorensen was initially interested in studying medicine at University of Copenhagen. But he eventually spent more time studying chemistry and obtained his PhD in 1899.
Sorensen did most of his research in Carlsberg Laboratories. He became the director of its chemical section in 1901. While at Carlsberg, Sorensen started to study amino acids, proteins and enzymes.
As hydrogen ion concentration played a key role in enzymatic reactions he devised a simple way of expressing it, according to EuCheMS, the European Association for Chemical and Molecular Sciences.
He found that by taking a negative logarithm of hydrogen ion concentration a convenient scale can be established. This is the well-known pH value.
He also developed buffer solutions to maintain constant pH of solutions (Sorensen buffers), EuCheMS noted in a short biography of the scientist in its website.
The Google Doodle on Tuesday allows users to see for themselves the pH value of different food items, including tomatoes and eggs in a scale of 1 to 14.
Sorensen retired from his post at Carlsberg in 1938. He died in Copenhagen in 1939.
Let the Truth be known. If you read VB and like VB, please be a VB Supporter and Help us deliver the Truth to one and all.
Over 350 illegal religious structures removed along Nepal border
Lucknow, May 11 (PTI): The Uttar Pradesh government on Sunday said that more than 350 unauthorised religious sites, including madrasas, mosques, mazars and Eidgahs, have been identified and subjected to sealing or demolition in recent days, an official statement issued here said.
Acting on Chief Minister Yogi Adityanath's clear directive that no religious encroachment will be tolerated, the administration in districts such as Pilibhit, Shravasti, Balrampur, Bahraich, Siddharthnagar and Maharajganj has launched a sweeping campaign, it said.
The authorities have systematically identified illegal structures and taken strict action, continuing operations even on Sunday.
The chief minister has made it clear that encroachment in the name of any religion will not be allowed and all violators, especially those running unrecognised religious institutions, will face legal consequences, the statement said.
On May 10 and 11, 104 madrasas, one mosque, five mazars and two Eidgahs built illegally on public and private land were identified in Shravasti. All were issued notices and sealed, it said.
One illegal madrasa on public land was demolished and two unrecognized madrasas on private land were sealed, the statement added.
In Bahraich, officials identified 13 madrasas, eight mosques, two mazars and one Eidgah illegally constructed on government land.
After issuing notices, five were sealed and 11 were demolished, including eight madrasas, two mosques and one mazar, the statement said.
In Siddharthnagar, the authorities identified four mosques and 18 madrasas and one more madrasa for illegal construction. Notices were issued to these structures. Five madrasas were sealed and nine were demolished. In total, action was taken against 23 illegal structures in the district, it said.
In Maharajganj’s Nautanwa tehsil, Parsamalik village, an unrecognized madrasa operating on Maktab land was shut down based on a report submitted by the District Minority Welfare Officer.
The building’s keys were handed over to the local police station in-charge. So far, 29 madrasas and five mazars constructed through encroachment on public and private land have been demolished in the district.
In past two days in Lakhimpur Kheri, two mosques, one Eidgah on public land along with eight madrasas on private land were found to be illegally constructed.
Of the 13 structures identified, one was served a notice, nine were sealed and three have been demolished so far, the statement said.
The district authorities in Pilibhit have identified an illegal mosque built on public land in Bharatpur village, covering an area of 0.0310 hectares.
According to the district magistrate, a notice has been issued to the parties involved, seeking a response within 15 days. Action against the illegal construction will be taken after the notice period ends, it said.
On Sunday, an under-construction madrasa on public land in Virpur Semra village, Tulsipur tehsil, was demolished in Balrampur. So far, 30 madrasas, 10 mazars and one Eidgah have been demolished in the district.
Ten of them were built illegally on public land, while 20 were constructed without authorization on private land, the statement said.
