Sunday 25 June 2017

10 Science Mysteries Waiting to Be Solved


The world of science creates mysteries as fast as it solves them — and sometimes even faster. Here are just a few of those mysteries that are waiting to be solved.

1. The impossible EM drive…works? Since first hearing rumors about NASA’s physics-breaking propulsion system late last year, a paper describing their device has passed peer-review, and China claims to be testing their own version in space right now.

And yet, no one can explain how this fuel-less drive is able to violate Newton’s Third Law: everything must have an equal and opposite reaction. If we learn anything this year or next, let’s hope we can get to the bottom of this confounding machine.

2. Humpback whales have been forming mysterious “super-groups,” and we still don’t know why. Back in March, never-before-seen groups of up to 200 whales were appearing off the coast of South Africa, which is weird, because seven is usually the upper limit for these solitary animals.

The behavior could be due to changes in prey availability, or because the species has been making a surprising comeback in recent years, but the jury’s still out on this one.

3. Astronomers have found evidence of a huge ninth planet on the edge of our Solar System — but we still can’t find it, even after NASA recruited thousands of people to search for clues.

But earlier this year, we finally got an official candidate for the mysterious presence, so hopefully we don’t have to wait too much longer to discover what’s truly out there.

4. Archaeologists made a stunning discovery inside Egypt’s Great Pyramid of Giza — evidence of a strange void behind the pyramid’s north face, and an unknown cavity high up in its northeastern edge.

It’s suspected that these could represent secret chambers that have eluded researchers and looters alike for thousands of years, and archaeologists are now hoping to non-invasively scan the insides of the giant tomb to figure it out.

5. Can we please figure out the nonsense that is the Tully Monster? This ancient sea creature that’s so messed up, scientists can’t stop arguing over it.

The 300-million-year-old creature had fins like a cuttlefish, eyestalks like a crab, and a rather intimidating “jaw-on-stick,” and this jumble of body parts has seen it compared to everything from molluscs, arthropods, and worms, to more complex vertebrates like lampreys.

6. We still don’t know what’s causing fast radio bursts — arguably the weirdest phenomena in the known Universe. They’re some of the most explosive signals ever detected in space, but they’re so confounding, some scientists have even resorted to “Aliens?”

But with the exact location for one of these signals being finally pinned down last month, we might be on the brink of figuring out what’s causing them.

7. Three separate experiments have found signs of a phenomenon that goes beyond the standard model of physics, and together they’ve hit a certainty level of 4 standard deviations, indicating a 99.95 percent chance this isn’t a mistake.

If this result can be supported by further experiments, it would have profound implications for our understanding of particle physics, and force scientists to draw up a whole new branch of physics to explain it.

8. The “Alien Megastructure” star that just won’t quit. Located 1,500 light-years away, KIC 8462852 (or Tabby’s star), has been experiencing unprecedented dips in brightness — while most stars experience periodic dimming of about 1 percent, this star has clocked dips of a whopping 22 percent.

Tabby’s star is so weird, one astronomer famously suggested aliens could be involved. With the latest bout of strange light patterns giving researchers more data to work with, let’s hope they can finally figure this one out.

6. We still don’t know what’s causing fast radio bursts — arguably the weirdest phenomena in the known Universe. They’re some of the most explosive signals ever detected in space, but they’re so confounding, some scientists have even resorted to “Aliens?”

But with the exact location for one of these signals being finally pinned down last month, we might be on the brink of figuring out what’s causing them.

7. Three separate experiments have found signs of a phenomenon that goes beyond the standard model of physics, and together they’ve hit a certainty level of 4 standard deviations, indicating a 99.95 percent chance this isn’t a mistake.

If this result can be supported by further experiments, it would have profound implications for our understanding of particle physics, and force scientists to draw up a whole new branch of physics to explain it.

8. The “Alien Megastructure” star that just won’t quit. Located 1,500 light-years away, KIC 8462852 (or Tabby’s star), has been experiencing unprecedented dips in brightness — while most stars experience periodic dimming of about 1 percent, this star has clocked dips of a whopping 22 percent.

Tabby’s star is so weird, one astronomer famously suggested aliens could be involved. With the latest bout of strange light patterns giving researchers more data to work with, let’s hope they can finally figure this one out.

Tuesday 13 June 2017

National Digital Library Online

All book reading fans out there check this new initiative from HRD and IIT KGP. 6.5 million books are now available in one single portal, where you can read online, or download the books. There are text books, audio and video content. Just browsing them all may take years! Enjoy. National Digital Library is an initiative by HRD ministry. It is a huge collection of learning resources (68 lakh books) from Primary to PG level. Students can use it free of charge.

To register, go to:

https://ndl.iitkgp.ac.in

Share with your students and friends also.

This is an amazing resource . Make it useful.

Wednesday 7 June 2017

APPLE NEURAL ENGINE

The Next Generation of iPhones May Be Coming With an Artificial Intelligence Chip
Your next smartphone might be more “intelligent” than anyone could have guessed. Apple is working on artificial intelligence (AI) chips for the iPhone that could increase battery life and perform tasks that currently require a human, according to an informant who wants to remain anonymous.
The chips, which are reportedly known internally as the “Apple Neural Engine” and would be integrated into all Apple devices, are specifically designed to cope with the high processing power that AI demands. Currently, Apple uses the main processor and graphics chips to deal with AI features like Siri, iPhotos’ facial recognition, and predictive typing — but, because the hardware not designed specifically for this purpose, battery life suffers.
Apple is characteristically secretive about the reports, and has declined to comment. However, we may hear more concerning the AI chip at the developer’s conference coming up in June — as we did concerning Google’s AI plans at their own conference earlier this month.

APPLE AND Artificial Intelligence

Tim Cook, the CEO of Apple, said at a press call in March that the company is planning to expand into the Augmented Reality market — this chip would be vital if this is the case.
The development of an AI chip for iPhones, iPads, and MacBook makes sense in the context of other recent Apple news, too. The company has recently purchased Lattice Data, which uses AI to structure “dark data” (data that cannot be used from an analytics standpoint). In addition, Apple’s self-driving car software, currently mounted on a Lexus, has been approved for road testing — it incorporates features like a radar, GPS, laser measuring, and computer vision.
Apple’s interest in the future of the AI industry is also reflected in the company joining the “Partnership on AI to Benefit People and Society,” a multi-corporation think tank that explores the responsible implementation of the technology. Amazon, Facebook, Google, and Microsoft are also partners in the project to make AI a useful tool for all humanity.
References: The Verge - All Posts, Bloomberg

THE PSYCHOLOGY OF EATING

These life hacks can make your weight loss journey easy.
1. EAT IN A SMALLER PLATE 
The quantity of food in both the plates is same. However, when we eat in a smaller plate our eyes trick our brain into thinking that we are having more food. While eating in a larger plate, we tend to pile up more food to fill the plate.
2. CONTRAST THE COLOR OF YOUR PLATE AND FOOD  
You may end up eating 25 percent more if you choose the red plate below. So, if you want to eat less, the trick is to choose a plate which has high contrast to the food served on the plate.
3. DRINK IN TALL SKINNY GLASSES 
Visually the tall skinny glass appears to hold more liquid than the short glass. So, you can limit cold drinks and alcoholic drinks by serving them in tall skinny glasses. This way, you will be drinking 20 percent less.
4. AVOID EATING WHEN DISTRACTED 
Research shows that people end up eating 30 percent more while watching TV, working on laptop or when distracted by something. Instead, practice mindful eating and lose weight.
5. KEEP SNACKS OUT OF SIGHT 
If you are a snacker then this psychological hack is for you. When we see yummy treats like chocolates, our brain sends the signal to eat it even when we are not hungry. It is always better to keep them out of sight by storing in a non transparent container etc.
6. BRUSH YOUR TEETH AFTER DINNER 
Brush your teeth 1 hour after dinner. This way it is less likely that you will indulge in late night munching.
7. BUY SMALL PACKS INSTEAD OF ONE LARGE PACK 
When a snack is in front of you, no matter what is the size of it, you will tend to finish it in one sitting. Therefore, opt for smaller packs and eat less.
8. LEAVE EVIDENCE BEHIND 
This trick works in a party. Give yourself visual clues of how much you have eaten. Experiments have shown that we tend to eat 25 percent more when we leave behind no evidence of the food eaten.

Some interesting Life Hacks!

Dear all....here some Life Hacks for you all!
One of the tricks to catch someone telling a lie is to see if they repeatedly look to their left while talking to you or do not make any eye contact.
Although it is tough but if you can get into the habit of not only remembering someone’s name when you first meet them, but using their name in the subsequent conversation you have, they’ll find you terribly charming and wonderful.
To appear more confident, self-assured, thoughtful and knowledgeable - avoid using many filler words like 'uh' 'umm' 'err' etc. Instead, use the silence (not too long) to order your thoughts and more coherently communicate whatever it is you are trying to get across.
People perceive other people with better posture as more important and confident people.
During negotiations, use silence as a weapon. Most people are uncomfortable with it an they will try to break it by giving up a key point.
If you ask someone a question and they only partially answer, give them a few seconds. By remaining silent and keeping your eye contact, they will usually continue talking.
You can restore your attention by taking a sneak peek of even just 40 seconds of nature. A 2015 Australian study found that looking at a flowering and grassy rooftop helped participants make less mistakes as compared to those staring at a concrete building. The lead author of the study says that even looking at an image of nature can help improve work performance.
Instead of looking for a less populated pathway right in front of you, look in the direction you want to go and point yourself that way. People will instinctively get out of your way, as they tend to watch others' eyes and body language to determine their direction.
Last but not the least,

Happiness is Contagious: 

It's not exactly Ebola, but happiness is contagious. And the effect is impressive - happiness can strengthen your immune system,decreases pain and chronic diseases and provide stress relief. One study even found that happiness can lower your risk of heart disease. Yet another reason to ditch the negative jerks in your life and stay positive. Laugh, and the whole world laughs with you!
Courtesy:-

Monday 5 June 2017

A World First CRISPR Trial Will Edit Genes Inside the Human Body

A new CRISPR trial, which hopes to eliminate the human papillomavirus (HPV), is set to be the first to attempt to use the technique inside the human body. In the non-invasive treatment, scientists will apply a gel that carries the necessary DNA coding for the CRISPR machinery to the cervixes of 60 women between the ages of 18 and 50. The team aims to disable the tumor growth mechanism in HPV cells.
The trial stands in contradistinction to the usual CRISPR method of extracting cells and re-injecting them into the affected area; although it will still use the Cas9 enzyme (which acts as a pair of ‘molecular scissors’) and guiding RNA that is typical of the process.
20 trials are set to begin in the rest of 2017 and early 2018. Most of the research will occur in China, and will focus on disabling cancer’s PD-1 gene that fools the human immune system into not attacking the cells. Different trials are focusing on different types of cancer including breast, bladder, esophageal, kidney, and prostate cancers.

MODIFYING OUR WORLD

The study, if it succeeds, will be promising for sufferers of HPV and act as a milestone in the CRISPR process. Although HPV is not necessarily cancerous, it can cause cervical cancer. In the U.S. alone, there are more than 3 million new infections every year. Although there is a vaccine for the virus, currently, once you have it you can never get rid of it.
More generally, the CRISPR process could be nothing short of a miracle: if it passes all medical tests it wouldn’t just make medicine a whole new kettle of fish, it would reinvent the kettle…and the fish, for almost any field. It is cheaper than other gene editing therapies, and could potentially save millions of lives by curing diseases we can only deal with therapeutically like cancer, diabetes and cystic-fibrosis. Crops could be altered more effectively using the process. Drugs and materials that were never possible before could be pioneered.
However, it is still extremely nascent technology, and many fear that there could also be a host of unexpected consequences. Recently, it has been found that it causes hundreds of unexpected mutations in DNA. While these concerns are valid, more research is necessary. Which is why the upcoming studies over the next few years are so vital to the future of our health.
References: New Scientist, Newsline, Clinicaltrials.gov

Saturday 3 June 2017

Scientists Hope to Use Stem Cells to Reverse Death in Controversial Study

Researchers seem to be setting their sights on increasingly lofty goals when it comes to the human body – from the world’s first human head transplant, to fighting ageing, and now reversing death altogether. Yes, you read that right. A company called Bioquark hopes to bring people who have been declared clinically brain-dead back to life. The Philadelphia-based biotech company is expected to start on the project later this year.
This trial was originally intended to go forward in 2016 in India, but regulators shut it down. Assuming this plan will be substantially similar, it will enroll 20 patients who will undergo various treatments. The stem cell injection will come first, with the stem cells isolated from that patient’s own blood or fat. Next, the protein blend gets injected directly into the spinal cord, which is intended to foster growth of new neurons. The laser therapy and nerve stimulation follow for 15 days, with the aim of prompting the neurons to make connections. Meanwhile, the researchers will monitor both behavior and EEGs for any signs of the treatment causing any changes.
BACK FROM THE DEAD
Researchers seem to be setting their sights on increasingly lofty goals when it comes to the human body – from the world’s first human head transplant, to fighting aging, and now reversing death altogether. Yes, you read that right. A company called Bioquark hopes to bring people who have been declared clinically brain-dead back to life. The Philadelphia-based biotech company is expected to start on the project later this year.
This trial was originally intended to go forward in 2016 in India, but regulators shut it down. Assuming this plan will be substantially similar, it will enroll 20 patients who will undergo various treatments. The stem cell injection will come first, with the stem cells isolated from that patient’s own blood or fat. Next, the protein blend gets injected directly into the spinal cord, which is intended to foster growth of new neurons. The laser therapy and nerve stimulation follow for 15 days, with the aim of prompting the neurons to make connections. Meanwhile, the researchers will monitor both behavior and EEGs for any signs of the treatment causing any changes.

CONTROVERSIAL IDEAS


While there is some basis in science for each step in the process, the entire regimen is under major scrutiny. The electrical stimulation of the median nerve has been tested, but most evidence exists in the form of case studies. Dr. Ed Cooper has described dozens of these cases, and indicates that the technique can have some limited success in some patients in comas. However, comas and brain death are very different, and Bioquark’s process raises more questions for most researchers than it answers.
One issue researchers are raising about this study is informed consent. How can participants in the trial consent, and how should researchers complete their trial paperwork – given that the participants are legally dead —and how can brain death be conclusively confirmed, anyway? What would happen if any brain activity did return, and what would the patient’s mental state be? Could anything beyond extreme brain damage even be possible?
As reported by Stat News, In 2016, neurologist Dr. Ariane Lewis and bioethicist Arthur Caplan wrote in Critical Care that the trial is “dubious,” “has no scientific foundation,” and suffers from an “at best, ethically questionable, and at worst, outright unethical nature.” According to Stat News, despite his earlier work with electrical stimulation of the median nerve, Dr. Cooper also doubts Bioquark’s method, and feels “there is no way this technique could work on someone who is brain-dead. The technique, he said, relies on there being a functional brain stem — one of the structures that most motor neurons go through before connecting with the cortex proper. If there’s no functional brain stem, then it can’t work.”
Peadiatric surgeon Charles Cox, who is not involved in Bioquark’s work, agrees with Cooper, commenting to Stat News on Bioquark’s full protocol, “it’s not the absolute craziest thing I’ve ever heard, but I think the probability of that working is next to zero. I think [someone reviving] would technically be a miracle.”
Pastor remains optimistic about Bioquark’s protocol. “I give us a pretty good chance,” he said. “I just think it’s a matter of putting it all together and getting the right people and the right minds on it.”
References: Scientific American, Science, Stat News, Critical Care