.jpg)
MOST POPULAR
- Man-made reasons for Uttarakhand disaster 1
- Dhari Devi idol goes missing 2
- Pedestrian questions 14
- Gujarat pollution board gets a makeover in efficiency 33
- Transition failure 1
- Where all did extreme events cause disasters last decade
- Rains over past three days extreme weather event: scientists 1
- Monsoon arrives early; kills over 30 people in Uttarakhand
- Rush of hydropower projects on Ganga, tributaries
- Out of turn
- Don’t just cash in on tigers 18
- Pedestrian questions 14
- Weather dice is loaded 13
- “Come elections, our forests are looted” 10
- Odisha's waterman 6
- Kudankulam meltdown 5
- Contaminating millets 4
- Risk of corruption clouds Andhra Pradesh solar bids 4
- Waging war on state 4
- Is Ganga losing its resilience? 4
FOLLOW US ON
Nano Technology
High on power
Issue Date: May 31, 2013
WE HAVE developed ultra-fast means of telecommunication and swankiest of electronic devices. But no matter how high-tech these gadgets are, they still rely on the humble battery for sustenance. The device has evolved much over the years. Lithium-ion batteries have replaced the basic carbon-zinc and alkaline ones, which are still used in flashlights and TV remotes. Now, a study on power storage capacity of lithium-ion battery has ensured the omni-present device would be doubly efficient in future.
Bright idea
Issue Date: Apr 30, 2013
A HIGH-INTENSITY light can make copper oxide, formed during rusting of copper, shake-off the oxygen attached to it and turn to copper. While the finding might not help reverse the rusting on your car, it has huge implications for the production of propylene oxide, an industrially important chemical used in making plastics, toiletries, antifreeze and paints.
Science and Technology - Briefs
Issue Date: Mar 31, 2013
CHEMISTRY
Nano guard
Science and Technology - Briefs
Issue Date: Mar 15, 2013
ATMOSPHERIC SCIENCES
Making waves
No wood is waste
Issue Date: Jan 15, 2013
ACROSS the globe hundreds of tonnes of wood enters the waste stream daily. Some of it finds use in the renewable energy sector, pulp and paper industry, wood-based boards and animal bedding; the rest goes into landfills. Indian researchers have now found a new use for waste wood—as a vehicle for delivering nutrients to plants.
Waste to wealth
Issue Date: Nov 30, 2012
FRUIT PEEL is not such a waste after all; it can be used to make gold and silver nanoparticles.
A study has shown that discarded pomegranate peel can be used to synthesise nanoparticles of the precious metals. These are ultra-small particles ranging from 1-100 nanometres (a nanometre is a billionth of a metre) and find extensive use in biomedical and electronic devices.
Science and Technology - Briefs
Issue Date: Nov 15, 2012
COMPUTER SCIENCES
Super disc
Typical compact discs (CDs) store 600-700 megabytes (MB) of digital data. A new technology can now help develop CDs that can hold 2 terabytes or 2,000,000 MB of data. Instead of packing more data on the surface, the idea is to make an optical film with 64 data layers.
Science and Technology - Briefs
Issue Date: Oct 15, 2012
HEALTH
Dengue breakthrough
Nearly half a million people are affected by dengue every year. But there is currently no vaccine to protect against the dreaded disease. This is because dengue is not caused by a single virus, but rather by four different viruses, known as DENV 1, 2, 3 and 4.
Science and Technology - Briefs
Issue Date: Sep 30, 2012
Zoology
Thin yet tough
Nano arsenic mop
Issue Date: Sep 15, 2012
MILLIONS in India and Bangladesh are at risk due to arsenic contaminated groundwater. Drinking such water can result in diseases like high blood pressure, abnormal thickening of skin and liver and prostate cancers. The methods to filter arsenic from drinking water are limited and costly. Commonly, alumina (aluminium oxide)-based materials like activated alumina are used to filter the contaminated water.
