‘Leap second’ syncronises Indian time with Earth’s spin on January 1,2017

The atomic clock was programmed to add an extra second to 2017 to compensate for a slowdown in the Earth’s rotation.
A ‘leap second’ was added to the Indian clock at 5:29.59 hours on January 1 to synchronise with the Earth’s rotational clock. 
  • As the atomic clock at the National Physical Laboratory (NPL) here struck 23:59:59 last night, it was programmed to add an extra second to 2017 to compensate for a slowdown in the Earth’s rotation.

Fossil fuel formation linked to rise in atmosphere’s oxygen

The rapid rise in the atmospheres oxygen roughly 500 million years ago which made advanced animal life possible on Earth is linked to the process that led to the formation of fossil fuels, suggests new research.
According to the study, the rise in oxygen was associated with a rapid increase in the burial of sediment containing large amounts of carbon-rich organic matter – the raw material of coal, oil and natural gas.

Rare frog found in Bejjur forest

Rare frog called "Uperodon Taprobanicus" is found at Bejjur forest in Adilabad district, Telangana.

The 253 square kilometre thickly forested area abutting the banks of Pranahita river on the eastern side of this district is a biodiversity haven, a fact which has re-emerged thanks to the recent discovery of a rare frog in the area.

  • On September 16, Polasa Tirupathi, a bird tracker working with the Forest Department, spotted a painted frog — the Uperodon Taprobanicus — on a tree within the campus of the Bejjur Forest Range office.
Uperodon Taprobanicus:
The Uperodon Taprobanicus belongs to microhylidae family and is listed as least concern species by the Switzerland based International Union for Conservation of Nature.
  • The United Kingdom based International Reptile Conservation Foundation will publish it in the ‘Journal of IRCF Reptiles and Amphibians: Conservation and Natural History.

Why sea ice cover around Antarctica is rising

A new NASA-led study has found why the sea ice cover surrounding Antarctica has been increasing slightly, in sharp contrast to the drastic loss of sea ice occurring in the Arctic Ocean. According to the study, the geology of Antarctica and the Southern Ocean is responsible for this rise.


Water staircases in seas

Scientists have proposed a possible mechanism by which the upper layers of the Arctic Ocean warm up, causing the ice to melt.

Unlike the surface waves we usually observe, internal waves in teh ocean can stretch over scales of 10-100 kilometres.The photograph is used for illustrative purposes only. Photo: M. Karunakaran

What’s it?
According to a research, internal waves, which move vertically through the ocean, sometimes pass through water staircases, which are steplike variations of density of water, in such as manner as to churn up the underlying warm, salty water, thereby increasing the temperature of the top, cooler layers.