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scibook

Joined December 03, 2014

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Physicists Say They've Created a Fluid With 'Negative Mass'

Researchers in the US say they've created a fluid with negative mass in the lab... which is exactly as mind-bending as it sounds.



What it means is that, unlike pretty much every other known physical object, when you push this fluid, it accelerates backwards instead of moving forwards. Such an oddity could tell scientists about some of the strange behaviour that happens within black holes and neutron stars.


Longer telomeres protect against diseases of aging: A tale of mice and men

Scientists at the Gladstone Institutes discovered a key mechanism that protects mice from developing a human disease of aging, and begins to explain the wide spectrum of disease severity often seen in humans. Both aspects center on the critical role of telomeres, protective caps on the ends of chromosomes that erode with age.


Immortal stem cells let scientists create an unlimited supply of artificial blood

Researchers have developed a line immortal stem cells that allow them to generate an unlimited supply of artificial red blood cells on demand.



If these artificial blood cells pass clinical trials, they'll be far more efficient for medical use than current red blood cell products, which have to be generated from donor blood - and would be a huge deal for patients with rare blood types, who often struggle to find matching blood donors.


Researchers accidentally made batteries that could last 400 times longer

Researchers in the US have created a battery capable of being recharged hundreds of thousands of times without showing signs of wear, spelling a potential end to electronics rendered useless by dead cells.

battery

Credit: Steve Zylius / UC Irvine

The batteries of today are mainly lithium, and over time that lithium corrodes inside the battery.
Instead of lithium, researchers at UC Irvine have used gold...

Scientists discovered a 600-Mile Coral Reef at the mouth of the Amazon

A world crew of researchers has found a 1,000-km (600-mile) lengthy coral reef sitting on the murky, muddy mouth of the Amazon river, in line with new studies.

Corel Reef

Credit: Wikimedia

No matter how well we think we know our planet, there are always surprises – and a big one at that. The Amazon is the Earth’s crown river. The largest by water discharge, the second by length, its basin covers approximately 7,050,000...

Hundreds of hidden galaxies found behind Milky Way

Scientists have used radio telescopes to cut through the haze of the Milky Way, revealing hundreds of previously hidden galaxies lurking behind it.
These galaxies lie a mere 250 million light-years away—and they will only get closer, because they appear to be pulling us towards them at breakneck speed.

galaxies

Image: Artist's impression. Credit: ICRAR

This new view of the region could help...

An Indian Biotech company claims to have developed potential Zika vaccine

The World Health Organisation has declared Zika and its suspected link to birth defects a global health emergency. More than 20 countries in Latin America have reported an outbreak and a rare case of the Zika virus being transmitted through sex has been reported in Texas, USA.

As the world searches for a vaccine and other global companies take first steps on research, the Bharat Biotech International Limited in Hyderabad says it has patented the Zika vaccine.

Largest known prime number discovered

A computer in Missouri has discovered the largest known prime number, 2^74,207,281– 1. It is about 22 million digits long, 5 million digits longer than the previous largest known prime, which was discovered in January 2013.

largest prime number

Image: phys.org

Primes that can be written as one less than a power of two, i.e 2^n – 1 for some n, are known as Mersenne primes after the French monk Marin Mersenne who...

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