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Sometimes, modern problems require ancient solutions. A 1,400-year-old Peruvian water-diverting method could supply up to 40,000 Olympic-size swimming pools’ worth of water to present-day Lima each year, according to new research published in Nature Sustainability.
It’s one example of how indigenous methods could supplement existing modern infrastructure in water-scarce countries worldwide.
More than a billion people across the world face water scarcity. Artificial reservoirs store rainwater and runoff for use during drier times, but reservoirs are costly, require years to plan and can still fail to meet water needs. Just last week, the reservoirs in Chennai, India, ran nearly dry, forcing its 4 million residents to rely on government water tankers.
Peru’s capital, Lima, depends on water from rivers high in the Andes. It takes only a few days for water to flow down to Lima, so when the dry season begins in the mountains, the water supply rapidly vanishes. The city suffers water deficit of 43 million cubic meters during the dry season, which it alleviates with modern infrastructure such as artificial reservoirs.
Artificial reservoirs aren’t the only solution, however. Over a thousand years ago, indigenous people developed another way of dealing with water shortages. Boris Ochoa-Tocachi, a postdoctoral researcher at Imperial College London and lead author of the study, saw firsthand one of the last remaining pre-Inca water-harvesting systems in the small highland community of Huamantanga, Peru.
Water diverted, delayed
The 1,400-year-old system is designed to increase the water supply during the dry season by diverting and delaying water as it travels down from the mountains. This nature-based “green” infrastructure consists of stone canals that guide water from its source to a network of earthen canals, ponds, springs and rocky hillsides, which encourage water to seep into the ground. It then slowly trickles downhill through the soil and resurfaces in streams near the community.
Ideally, the system should be able to increase the water’s travel time from days to months in order to provide water throughout the dry season, “but there was no evidence at all to quantify what is the water volume that they can harvest from these practices, or really if the practices were actually increasing the yields of these springs that they used during the dry season,” said Ochoa-Tocachi.
To assess the system’s capabilities, the researchers measured how much it slowed the flow of water by injecting a dye tracer high upstream and noting when it resurfaced downstream. The water started to emerge two weeks later and continued flowing for eight months — a huge improvement over the hours or days it would normally take.
“I think probably the most exciting result is that we actually confirmed that this system works,” Ochoa-Tocachi added. “It’s not only trusting that, yeah, we know that there are traditional practices, we know that indigenous knowledge is very useful. I think that we proved that it is still relevant today. It is still a tool that we can use and we can replicate to solve modern problems.”
Considerable increase in supply
The researchers next considered how implementing a scaled-up version of the system could benefit Lima. Combining what they learned from the existing setup in Huamantanga with the physical characteristics of Lima’s surroundings, they estimated that the system could increase Lima’s dry-season water supply by 7.5% on average, and up to 33% at the beginning of the dry season. This amounts to nearly 100 million cubic meters of water per year — the equivalent of 40,000 Olympic-size swimming pools.
Todd Gartner, director of the World Resources Institute Natural Infrastructure for Water project, noted that this study “takes what we often just talk about — that ‘green [infrastructure] is as good as grey’ — and it puts this into practice and does a lot of evaluation and monitoring and puts real numbers behind it.”
Another benefit of the system is the cost. Ochoa-Tocachi estimated that building a series of canals similar to what exists in Huamantanga would cost 10 times less than building a reservoir of the same volume. He also noted that many highland societies elsewhere in the world have developed ways of diverting and delaying water in the past and could implement them today to supplement their more expensive modern counterparts.
“I think there is a lot of potential in revaluing these water-harvesting practices that have a very long history,” Ochoa-Tocachi said. “There are a lot of these practices that still now could be rescued and could be replicated, even though probably the actual mechanics or the actual process is different than the one that we studied. But the concept of using indigenous knowledge for solving modern engineering problems, I think that is probably very valuable today.” (VOA)
Amitabh Bachchan is adored by the public for his unforgettable on-screen performances as well as his magnetic demeanour. Not only do fans love Amitabh Bachchan's outstanding performance, but the actor's heartwarming words are also highly regarded. A much moved Amitabh Bachchan, during his speech to the crowd of over 80,000 people at the Reliance Industries' annual event, said that the legacy left by Dhirubhai has had a positive impact on millions of people's lives worldwide.
When Bollywood superstar Amitabh Bachchan became bankrupt in the late 1990s, Dhirubhai Ambani stepped forward to give him financial assistance. In his speech, Bachchan remembered that Dhirubhai had sent Anil Ambani to offer him financial assistance during the crisis, which he had respectfully declined. Lenders began knocking on his door, losses mounted, and his bank account dwindled to nothing. He said, "Dhirubhai's money might have gotten me out of the problem quickly. However, I respectfully declined his offer and gradually began to find work again, which let me pay off my debt."
Amitabh Bachchan is adored by the public for his unforgettable on-screen performances as well as his magnetic demeanour. | Flickr
Later, after Bachchan had recovered from the bankruptcy, one day he was invited to an event at Dhirubhai's residence; Bachchan added, "Dhirubhai was standing and having a chat with his industrialist friends when he saw me there, he called me, firstly I felt shy even to present myself in front of such big industrialists but then, I went there, and Dhirubhai declared in front of all of them that 'This young man had fallen but managed to get back up on his own, I have a lot of respect for him because of that.' Those words of his were worth much more to me than any amount of money that he could have offered me."
It was the "Reliance Family Day" event and was attended by members of the Ambani family from all generations. The event commemorated the company's 40-year journey since its inception. It also celebrated the 85th birthday of the late Dhirubhai Ambani, RILs (Reliance Industries Limited) founder.
Keywords: Bollywood, Reliance, Amitabh Bachchan, Dhirubhai Ambani, event
In comparison to adults, children are prone to getting traumatized by troubling events easily, and this makes it important for parents to help their children when the times are tough. It could be a brutal accident, an unprecedented pandemic, a violent crime, or other disasters but with the right parental support, children have a higher chance of coming out stronger from an awful situation.
Anuja Kapur, Psychologist shares few tips wherein you can assist your child when tough times comes calling:
Every child responds differently to disturbing events: What children feel about a current disaster in their life and how they react to it can come and go in waves. Children can act moody and withdrawn at times, struck with sorrow and fear at other times. There's no absolute "right" or "wrong" way to feel after a traumatic event so make sure not to dictate what your child or how your child should feel and react to the event.
Children can act moody and withdrawn at times, struck with sorrow and fear at other times. | Photo by Kat J on Unsplash
Encourage your child to be transparent: Just make sure you let your child know that whatever feelings they're experiencing is normal. The unpleasantness will pass if your child opens up about it and that the phase is temporary. While many teens may be reluctant to talk about their feelings with a parent, encourage them to confide in another trusted adult such as a family friend, relative, or a counselor and teacher. It's important to talkeeven if it's not with you.
Just make sure you let your child know that whatever feelings they're experiencing is normal. | Photo by Sebastián León Prado on Unsplash
Deter your child from reliving the disturbing event: Dwelling over, watching the footage, or imagining the event can be overwhelmingly stressful for children and this stress can even block their nervous system. However, to negate such things from happening encourage activities that keep your child's mind occupied so they're not obsessive about the event. You could encourage your children to read, play games together, or simply watch an uplifting movie.
Dwelling over, watching the footage, or imagining the event can be overwhelmingly stressful for children and this stress can even block their nervous system. | Photo by Юлія Дубина on Unsplash
Cocoon your child with warmth: In order to reassure your child that they are safe with you and feel secure, that the worst is over your physical affection is important in making them feel safe again. Teens may try to be tough through it and avoid being held, but they still need the proximity.
In order to reassure your child that they are safe with you and feel secure, that the worst is over your physical affection is important in making them feel safe again. | Photo by adrianna geo on Unsplash
Maintain routines. Establishing a predictable structure and schedule for your child's life can help to make the world seem more stable again. Try to maintain regular times for meals, homework, and family activities. Make sure your child accommodates time and space for rest, play, and fun. Keeping up with a schedule can help countercheck the obnoxious feeling of stress and worry in children about the future being dark, hopeless, and unpredictable.
Try to maintain regular times for meals, homework, and family activities. | Photo by Paico Oficial on Unsplash
Acknowledge and validate your child's concerns. The disastrous events in life may give place to unrelated fright and concerns in your child. However, understanding and accepting your child's present state is a comfort for the child. If at any point the child blames himself for the event make sure to make it clear and crisp the event was not their fault, you love them, and it's okay for them to feel upset, angry, or scared but not guilty.
Understanding and accepting your child's present state is a comfort for the child Photo by Jeremiah Lawrence on Unsplash
Irrespective of the age of your child, it is vital for parents to offer that extra support and assistance following an unsettling event. The traumatic event may bring up unrelated fears and issues in your child. However, by accepting their thoughts and replacing their fear with your love and direction, the ominous feelings will start to fade away. Eventually, the child will be able to return to a normal and healthy life. (IANS/ MBI)
Keywords: Kids, Help, stress, cope, routine, warmth, understanding, encourage, psychology, children
The European Commission, the executive arm of the European Union (EU), has announced plans for smartphone and other electronics manufacturers to fit a common USB-C charging port on their devices in an effort to reduce waste. In addition to phones, the rules will apply to other devices like tablets, headphones, portable speakers, videogame consoles, and cameras, reports The Verge. The decision will have a huge impact on Apple, as the company still uses its own Lightning connector to charge iPhones. The proposals only cover devices using wired, not wireless and a USB-C port is only mandatory for devices that charge using a cable.
"Chargers power all our most essential electronic devices | Photo by Solen Feyissa on Unsplash
"Chargers power all our most essential electronic devices. With more and more devices, more and more chargers are sold that are not interchangeable or not necessary. We are putting an end to that," the report quoted EU commissioner Thierry Breton as saying.
The Commission also wants to unbundle the sale of chargers from the sale of electronic devices, which it says will improve the consumers' convenience. "With our proposal, European consumers will be able to use a single charger for all their portable electronics - an important step to increase convenience and reduce waste." In addition, the Commission will require manufacturers to provide relevant information about charging performance. (IANS/MBI)
Keywords: Electronic Devices, Chargers, Cable, smartphone, Adapters, Charging Cord