CMFRI's seed production technology wins national acclaim
The achievement highlights the technology's significance in sustainable mariculture practices. CMFRI director Grinson George stated, "The technology will boost the production of this commercially important fish, contributing to the nation's seafood security and blue economy".
Giant trevally's characteristics, including swift growth and adaptability, position it as an excellent choice for mariculture.
The species thrives in diverse marine and estuarine settings, such as cages, pens and coastal ponds. Its superior growth rate compared to pompanos, combined with its tolerance to varying salinity and water conditions, provides farmers with enhanced operational flexibility. The market value of this popular marine fish ranges from Rs 400 - 700/ kg.
The development process at CMFRI encountered substantial obstacles, particularly due to the species' natural habitat preferences and complex reproduction patterns. The successful technological breakthrough was achieved by a team of scientists including Ambarish P Gop, M Sakthivel and B Santhosh at CMFRI's Vizhinjam regional centre.
Following CMFRI's established protocol utilizing pellet feeds, the fish attains a marketable weight of 500g within five months, progressing to approximately 1kg after eight months of cultivation.
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Time of India
2 hours ago
- Time of India
Students make low-cost lightning arrester, school applies for patent
1 2 Kolkata: An experiment at a school workshop in Madhyamgram is all set to bring down the cost of lightning conductors to less than half and save lives of thousands from being electrocuted in the fields. The lightning conductor, devised by students at Sodepur Deshbandhu Bidyapith (Boys), already passed tests at institutes like Central Power Research Institute and was awarded at the National Children's Science Congress in 2020. The school has now applied for its patent. The project took off nearly eight years ago with school students trying to devise a lightning conductor from household and garage waste. A thin aluminium sheet is fitted at the edge of a structure that looks like the wheel of a cycle. There are pores on the rim of the wheel, and copper wires are inserted through them as spokes. There is a hub in the middle, and there are threaded holes connected to the wires going inside the earth. You Can Also Check: Kolkata AQI | Weather in Kolkata | Bank Holidays in Kolkata | Public Holidays in Kolkata Lightning conductors have sharp edges, which help in converging electric field lines on the lightning conductor more. This further helps reduce damage to the nearby areas from lightning. Also, the lightning conductor's pointed ends help it to acquire more positive charges on its tip. While commercially available lightning conductors have three to four pointed edges, the lightning conductor devised by the students has nearly 450-500 pointed edges. "When the negative charge is discharged by the cloud, it first strikes the pointed tip of the lightning conductor and quickly travels to the earth. The discharge process gets over very quickly, and a house, people or animals in its surroundings will be saved from damage," said Pashupati Mandal, physics teacher of the school who heads the project. It costs less than Rs 1,000, while commercially available lightning conductors with one or two pointed ends cost nearly Rs 2,100. "The initial prototype was made at a cost of Rs 350. But we decided to modify that after tests were done at the central laboratories. The modified lightning conductor costs around Rs 1,000. This is at least 10 times more useful and can be installed by anyone. It can easily be purchased by farmers who pay more than double to buy lightning conductors from the market," Mandal said. Normally, lightning conductors are used at the top of buildings or towers. But this can be put on the field, which is watery and marshy. "So far, we have installed lightning conductors at 40 locations across districts in north Bengal, and we are closely monitoring them," said Ambarish Nag Biswas of West Bengal Radio Club, which is assisting the school in developing the lightning conductor. "There are hundreds of farmers and animals who die every year from lightning. Apart from that, fishermen also use lightning conductors," Nag Biswas said.
Time of India
2 hours ago
- Time of India
Students make low-cost lightning arresters, school applies for patent
Kolkata: An experiment at a school workshop in Madhyamgram is all set to bring down the cost of lightning conductors to less than half and save lives of thousands from being electrocuted in the fields. The lightning conductor, devised by students at Sodepur Deshbandhu Bidyapith (Boys), already passed tests at institutes like Central Power Research Institute and was awarded at the National Children's Science Congress in 2020. The school has now applied for its patent. The project took off nearly eight years ago with school students trying to devise a lightning conductor from household and garage waste. A thin aluminium sheet is fitted at the edge of a structure that looks like the wheel of a cycle. There are pores on the rim of the wheel, and copper wires are inserted through them as spokes. There is a hub in the middle, and there are threaded holes connected to the wires going inside the earth. You Can Also Check: Kolkata AQI | Weather in Kolkata | Bank Holidays in Kolkata | Public Holidays in Kolkata Lightning conductors have sharp edges, which help in converging electric field lines on the lightning conductor more. This further helps reduce damage to the nearby areas from lightning. Also, the lightning conductor's pointed ends help it to acquire more positive charges on its tip. by Taboola by Taboola Sponsored Links Sponsored Links Promoted Links Promoted Links You May Like This Japanese AI invention allows you to speak 68 languages instantly. The idea? Genius. Enence 2.0 Undo While commercially available lightning conductors have three to four pointed edges, the lightning conductor devised by the students has nearly 450-500 pointed edges. "When the negative charge is discharged by the cloud, it first strikes the pointed tip of the lightning conductor and quickly travels to the earth. The discharge process gets over very quickly, and a house, people or animals in its surroundings will be saved from damage," said Pashupati Mandal, physics teacher of the school who heads the project. It costs less than Rs 1,000, while commercially available lightning conductors with one or two pointed ends cost nearly Rs 2,100. "The initial prototype was made at a cost of Rs 350. But we decided to modify that after tests were done at the central laboratories. The modified lightning conductor costs around Rs 1,000. This is at least 10 times more useful and can be installed by anyone. It can easily be purchased by farmers who pay more than double to buy lightning conductors from the market," Mandal said. Normally, lightning conductors are used at the top of buildings or towers. But this can be put on the field, which is watery and marshy. "So far, we have installed lightning conductors at 40 locations across districts in north Bengal, and we are closely monitoring them," said Ambarish Nag Biswas of West Bengal Radio Club, which is assisting the school in developing the lightning conductor. "There are hundreds of farmers and animals who die every year from lightning. Apart from that, fishermen also use lightning conductors," Nag Biswas said.
New Indian Express
10 hours ago
- New Indian Express
‘India's 1st quantum computer operational in Bengaluru'
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