Honouring Sorensen, who gave pH scale

New Delhi: 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. IANS

Rs 25 lakh for students who scaled Everest

Mumbai: The Maharashtra government has announced a reward of Rs 25 lakh each to the state’s five tribal students who successfully scaled Mount Everest earlier this month. They would also be given a job in the police force. The five who could not complete the entire trek would be given Rs 10 lakh. All 10 are students of Ashramshalas (state-run residential schools for tribals) from Chandrapur district. PTI