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How does a Graphene battery compare to Lithium-ion battery

Tech-savvies believe that we’d genuinely be futuristic when we have easy access to Graphene batteries. A battery may sound like a simple thing to many, but Graphene batteries could change the game forever.

Scientists say that Graphene batteries will genuinely create a futuristic society where your devices can run up to days and weeks without charging.

A Graphene Battery in a nutshell

Packed together in a honeycomb structure, graphene is a carbon atom composition that has a thick two-dimensional atomic layer. The 2D structure of this composition allows graphene to be highly flexible, stalwart, and light in weight, as well as offer exceptional electrical and thermal conductivity that is even better than that of copper – an element that is known to be most conducive.

Graphene battery vs your regular battery 

The battery that we use in our portable devices is made with lithium-ion, also known as Li-ion. A lithium-ion battery has a similar structure to a graphene battery. Both the batteries have two conductive plates coated in an electrolyte solution, but the characteristics of both batteries differ on a considerable margin.

As mentioned earlier, graphene’s electrical and heat conductivity is higher than the most conducive element copper. Thus, it’s conductivity surpasses that of Lithium-ion as well. As a result, a device can be charged a lot faster as current travels more quickly. This high conductivity also extends the life span of a battery as they cool down faster.

A regular battery’s charging rate doesn’t remain consistent throughout its lifetime. A lithium-ion battery starts faster, tires out, and then delivers slower current, reducing the rate of charging. On the other hand, a Graphene battery offers linear charging rates, which means that this type of battery doesn’t tire out.

“Graphene batteries can make batteries charge faster and dissipate heat more effectively. This has big implications. It means power tools don’t overheat as quickly. It means home appliances serve families better, and for longer. And it eventually means [electric cars] can charge faster.” Chip Breitenkamp, VP of business development at the graphene battery company said.

Most importantly, Graphene batteries are safe. The incidents of smartphones burning up, overheating, and damage due to overcharging are overly familiar. Users can avoid these unfortunate events by opting for Graphene Batteries instead. There’s virtually no chance of overheating Graphene batteries as they are more robust than lithium-ion ones.

A Rare Commodity – Water Makes It To WSJ Futures Commodity

Water is all set to join the expensive commodities on earth like gold and oil on Wallstreet futures commodity. In an unexpected turn of events, water now sits next to the rare-valued items. 

 

Wallstreet futures commodity is a separate section where people in the relevant fields can bet on the price and worth of an item in the future. Earlier, rarities such as gold, copper, and diamonds acquired several spots. However, with water running scarce in many parts of the world, the Wallstreet Journal has added this to their futures commodity. 

 

This addition will allow the farmers, investors, and municipalities to bet on the worth of water in future. As water becomes a rare commodity for many, investors took this opportunity to bet on it by adding it to futures rare materials. CME Group launched the contract, which is tied to $1.1 B of California spot water market, according to Bloomsburg. 

 

The contracts were laid out in September, whereas the trading began on December 7. During the month of September, when the contract was initially laid out, California was experiencing high temperatures, long drought and scarcity of water. The deficiency of water in a developed country only hinted at more dangers to come across the world. 

 

Netizens are raging over Wallstreet journals’ addition of water into their betting services, as it may have a significant impact on prices of water in future. For example, in dry areas where water may be expensive during summers, people can offset the cost on futures commodity to reset the rates of water. However, this can work the other way around as well in order to reduce rates of water.

 

Patrick Wolf, the lead product developer with Nasdaq Global indexes, told CNN that this could be used for a good cause as well, as the contract will bring transparency to market pricing whenever water became scarce. 

 

“California has long periods of dry conditions followed by short periods of very wet conditions. And that affects the price a lot,” Patrick Wolf said. 

 

A report revealed by food and agriculture organization confirmed that around 1.2 B people in the world are experiencing a high level of water shortage. Another report confirmed the scarcity by revealing that the availability of freshwater resources per person has decreased by more than 20% in the past twenty years. 

 

“Climate change, droughts, population growth, and pollution are likely to make water scarcity issues and pricing a hot topic for years to come,” RBC Capital Markets managing director and analyst Deane Dray told Bloomsberg

 

Despite the rage and anger, it is a moment of truth of human beings. Water is becoming increasingly scarce in different parts of the world due to repetitive droughts, dry weather due to global warming, and heat. As the earth is ageing, the impact of human activities is speeding up the process of natural damage to the Earth, resulting in droughts and bad weather conditions.

 

Quintessence – A New Element That May Rip the Universe Apart

Every unexplainable event in Space is generally attributed to dark energy. So was the unexpected expansion of the Universe. However, many scientists suggest that “Quintessence” might be responsible for the expansion.

Generally considered as Space’s intrinsic element, dark energy has been found to form 68% of everything that exists in the universe. Fortunately, scientists now have a name for it.

To understand Quintessence, one must go back to the ‘Big Bang,’ that formed a universe. A blast, for example, blows up and then culminates into nothing by collapsing. Similarly, the universe was expected to collapse. However, there are three ways in which this could stop:

  • The gravitational force takes over, resulting in a Big Crunch.
  • Expansion overpowers the gravity, and universe freezes into a Big Rip.
  • Both the forces balance out one another, shutting down the collapse.

Making sense of Quintessence

First discovered in 1988 by Ratra and Peebles, the idea of Quintessence later matured into a whole concept in Robert R. Caldwell, Rahul Dave, and Paul Steinhardt’s paper in 1998. The authors breathed life into this hollow concept which was later considered as the fifth element by many scientists.

To explain the expansion, scientists’ first guess was that dark energy is something that inherently existed in Space. They implied that dark energy per unit of Space is fixed as a “cosmological constant.” However, not all scientists were on the same page. These were the scientists who first coined the term Quintessence, derived from the fifth element.

According to a cosmologist at Dartmouth College, Robert Caldwell, “Quintessence is a tangible medium that has fluctuations of its own,” and is a mix of matter and the cosmological constant.

Big Rip Vs the Big Crunch

When the Big Bang took place, the universe was hot, dense, and full of matter. It had anti-matter, energies, and radiations. Scientists discovered and made sense of many elements. However, missing out on Quintessence birthed many false theories.

The data collected since the year 1990 is proving that Big Crunch may not happen and a new matter that defines the universe in the 21st century may change everything forever.

Scientists have already predicted the final fate of the universe. According to cosmologists, the universe will eventually wrap up in a big crunch. However, the accelerating rate of expansion is contrary to all theories. The universe is swelling faster than ever, instead of crunching. Scientists now believe that a Big Rip is more likely to end the universe than a Big Crunch, and the mysterious element Quintessence would be responsible for that.

Cosmologists are still working on confirming the presence and impact of the fifth element; however, if the component does prove to be the force behind expansion. It would help scientists determine the fate and age of the Universe.

Years Later, Radio Bursts in Space Remain A Mystery

Theories and assumptions chipped in by scientists around the globe keep stacking up, but none of them has been able to detect the source of a mysterious radio burst in space.

“The joke is that the number of theories outnumbers the number of known bursts,” says astrophysicist Emily Petroff of The Netherlands Institute for Radio Astronomy.

First discovered in 2007 by Lorimer et al., Fast Radio bursts (FRB) continue to be an exciting topic of research due to their mysterious nature. FRBs seem like an aesthetic meteor shower gone mega, but they are much complicated than that.

Fast Radio Bursts in a Nutshell 

The source might be unknown, but scientists have been able to define the fast radio bursts aptly. As evident from the name, they are a burst of radio emission that last for milliseconds. These short-lived blasts are anything but ordinary. A generic FRB releases as much energy in milliseconds as the sun radiates in 3 days.

When the bursts were first spotted, they were considered to be rare. Not much attention was paid to it as enough data wasn’t available. Fortunately for the researchers, the bursts became more frequent. Unfortunately, more data hasn’t been much help.

FRBs are becoming repetitive.

There have been dozens of FRBs since 2007. However, no pattern was found, making it challenging for astrophysicists to make sense of anything. In 2012, repeated bursts were observed for the first time, allowing the researchers to collect data effectively. These bursts are typically known as FRB 121102 and have helped the scientists understand this enigma better. For the first time, the bursts weren’t random, but they were found in the same position in the sky. These bursts kept repeating on a 157-day cycle, allowing the researchers to gather the appropriate data that might answer some questions.

The data collected from FRB 121102 did set a base. The majority of scientists agreed that Magnetars cause these bursts. Magnetars are sub-class of neutrons that are formed from stellar explosions. Type-I explosions (super luminous supernovas) create these magnetars that are capable of producing such intense energy that is detectable from other galaxies.

Despite theories and research, scientists are still to come to a conclusion. Data from 2012 confirmed that these explosions are taking place outside of our galaxies. However, new data testifies that bursts are gradually nearing the universe. In fact, the first burst within the milky way was spotted this year in April. Known as FRB 200428, these bursts were accompanied by X-rays, something that has never happened before. Similar outbreaks were repeated on 3 and 24 May, some 30,000 light-years away from earth.

It’s hard to say whether the new information collected each day is bringing us closer to unraveling this enigma, or just making it all more complicated.

 

Touching the VR world with gloves on

The world of virtual reality is becoming more real each day. Most recently, researchers from Cornell University have created a glove that makes touching through VR a reality.

Technological developments in 2020 are firing on all cylinders. There is something new coming up each day, but nobody thought that virtual reality could get any more real than it already is.

Researchers disagree. They are making VR more immersive.

With new developments in VR, you could actually pick up an object and feel it in your hands. Thanks to Cornell University researchers who have designed a sensor that tracks the movement of your hands. The primary purpose of this development is to make virtual reality more tactical and immersive as users can slide on this glove, and feel the objects.

Fibre-optic sensors on Cornell Researchers’ Glove

Many scientists and researchers have been trying to add a physical experience to a somewhat robotic world. All of their experiments included either haptic sensors or mechanical wires. This one particular creation of Cornell researchers has stretchable fibre optic sensors that sit on top of your hand like a spider web.

Silica-based distributed fibre-optic sensor (DFOS) systems are a renowned tool for sensing stress, pressure, vibration, warmth, and moisture. This glove has a stretchable fibre-optic sensor that extends to the length of your fingers, with tips lit up with LED lights. The current framework is pretty simple with bands wrapped around fingers, a battery attached on the wrist, Bluetooth and some basic circuits.

Sensors on these gloves bend with the movement of fingers, making the whole experience as closer to reality as it can get. It may sound impressive, but this feature is not the hero of the show. It is the fibre optics that allow the user to feel the force, pressure, and stress caused by the movements.

Right now, sensing is done mostly by vision. We hardly ever measure touch in real life. This skin is a way to allow ourselves and machines to measure tactile interactions in a way that we currently use the cameras in our phones. It’s using vision to measure touch. This is the most convenient and practical way to do it in a scalable way.” Lead researcher Rob Shepherd said.

A VR glove may sound fun, but it can serve a much essential purpose. Researchers believe that fibre optic glove will make soft robots more efficient. Machines and robots can contribute more than ever to the advancement of the world through VR.

The creators are currently developing the product further and analyzing how it can help in the world of medicine, physical therapy, and sports.

Live longer. Eat Chilies.

The proverb “an apple a day keeps the doctor away” is famous for all the right reasons. It is common knowledge that food is excellent for health. But while we focus on apples and bananas, we overlook a fruit that may help us live longer. Research has shown that chilies reduce health risks. 

 

Diet sits at the heart of discussions regarding health and fitness. No amount of workout will be sufficient unless food intake is healthy and hygienic. Among foods that nurture our bodies, chilies have to be the most overlooked one as these fiery looking fruits are incredibly beneficial for overall health, according to research. 

 

About 80% of adults over the age of 65 die due to natural diseases such as cancer, heart diseases, diabetes, and stroke. Doctors advise to steer clear of oily foods and sugars, but it appears that chilies might help people live longer. 

 

A review showed that those who add chili peppers to their food for 20 years had lower chances of death by 13% compared to those who didn’t.

 

Here’s how it works; the peppers don’t magically make you younger. The chili peppers work on minor and various areas of your body, reducing health risks. For instance, chili peppers can help you lose weight. A significant cause of death and poor lifestyle among food lovers is obesity. Chili pepper speeds up your metabolism, allowing you to remain fit and healthy. 

 

Red chili peppers are also efficient body boosters. Oranges are famous for their Vitamin C provision. However, research shows that Chili peppers beat oranges in Vitamin provision. The fiery peppers are packed with Vitamin C, A, B, and E. These vitamins help protect cells in the body and prevent inflammation. 

 

However, there are not enough papers to back up the research; Chili peppers have also shown to fight cancer cells. The fiery pepper can kill up to 40 types of cancers such as lung cancer, liver cancer, colon and pancreatic cancer. The chemicals in peppers can stop the growth of cancer cells, according to the American Association for Cancer Research. 

Capsaicin in chili peppers is the “life saver”

 

The benefits of chili pepper are numerous because of a compound called capsaicin. 

 

Capsaicin in chili peppers has anti-microbial properties and plays a crucial role in heating up your body, and in turn preventing the fat from accumulating. 

 

Apart from this main compound, chili peppers are rich in potassium that plays a pivotal role in preventing heart diseases, especially when combined with folate. Both the acids help balance your blood flow, keeping your vessels relaxed. 

 

However, excess of everything is bad. Doctors recommend a balanced use of chili pepper as excessive intake can cause stomach problems.