Tag: trick

Faking Sleep Affects Performance

By Anupum Pant

A couple of days back I talked about how standing for a few seconds in a superman position could increase your level of confidence and could help you ace interviews. Today it’s time again to look at a technique to increase performance by fooling your body.

First of all, you need to stop thinking you didn’t sleep well today. That is because the mere act of thinking you slept well makes you perform well. It’s been proven.

In a group where everyone got equal sleep, half of the people were just told by “experts” that they had 29% REM sleep (which is better) and the other half were told that they had only 16% REM sleep (that actually decreases performance). The catch was, they all had slept for equal times and everyone would have had more or less equal percentages of REM cycles. Only, they were told wrong things by “experts”.

This word of mouth coming from the “experts” actually affected the performance of these two groups. The group that was told they had a greater percentage of REM sleep performed well. And the group that was told they did sleep as well as the first group didn’t perform as good. I’m assuming both the groups were first informed about how the percentage of REM sleep affects performance.

So, stop cribbing about how tired and sleepy you  are.

Screaming Coin and a Singing Spoon

By Anupum Pant

Dry ice, or Cardice – as British researchers call it, is a solid form of carbon dioxide. When carbon dioxide is cooled below temperatures of -78.5 degrees centigrade, the gas gets directly frozen into a solid form. -78.5 degrees centigrade is extremely cold, and handling dry ice without proper protection can be very dangerous – could cause frostbite / burns. The point being, it’s extremely cold.

Since it’s too cold compared to something at room temperature, even everyday objects at room temperature can make it vaporize. A simple metal coin at room temperature would feel like a hot pan to dry ice. So, when a coin is shoved into a piece of dry ice, it creates a funny sound, just like water would, on a very hot pan; or, you could say the sound be very much like a hot metal ball being dropped into a cold bath of water (the temperature difference being much less in this case, of course).

This is how it works: The metal piece at room temperature vaporizes some amount of carbon dioxide from the piece of dry ice when it comes in contact. There’s a pressure difference (Bernoulli’s principle) associated with this process and the gas tries to escape. This makes the metal vibrate very fast, creating that funny sound. This is how it sounds…

Metals work best because they have a good thermal conductivity. For the sake of trying it out yourself, if you have a piece of dry ice lying unused, you could dip a spoon in hot water and make it touch the piece of dry ice. A slightly warmer spoon will probably give you a better effect. And then the spoon will be singing…

Mastering The Best Useless Skill – Reading Text in Binary

By Anupum Pant

The next time you see a series of 0s and 1s, you will no longer need to take it to a computer and feed it in to read it. Of course you might never have to read a text in binary, and that is the reason this might be the most useless skill you could master right away. I’m doing it anyway.

Tom Scott from YouTube  recently posted a video on YouTube where he teaches you how to read text written in binary. It’s fairly easy. The only thing you need to practice, if you don’t already know it, is the number that is associated with each alphabet (Like it’s 1 for A and 2 for B and so on).

via [ScienceDump]

Seeing Your Own Eye Blood Vessels

By Anupum Pant

Blind spots are fine and I’ve known for years how to spot your own blind spot. You can make 2 spots on a paper separated by 4-5 inches, close your right eye and look at the right side spot with your left eye. If you do that and move forward or backward ( and rest at about 15 inches from the surface you drew on), you’d find a point where your left eye’s peripheral vision would not render the left side spot. You’d have found your blind spot.

But there is something more interesting, I never knew. You can actually see the blood vessels of your eye, with your own eye. Here’s how…

Take a sheet of paper (or card), and poke a pin hole in it. Then close one eye and holding paper close to your eye, jerk around the paper in little circles. At the same time, make sure you are looking at a bright white area through that hole. You could open up MS paint, make the whole canvas white and stare at it through the hole. Try to focus on the white screen and not the paper (or card)…

The video probably explains it better.

A Fun Way to Multiply Numbers

By Anupum Pant

Please note, in the heading I said, a fun way to multiply numbers, not necessarily a quick way. Widely touted as an “amazingly quick Japanese method to multiply”, I think firstly, it really is not a very quick method. Secondly, I couldn’t find any sources confirming that it is a method developed by the Japanese. In fact, I’m not even sure if there’s anything Japanese about it. Nevertheless, the method sure is fun and should work great for people who don’t remember the multiplication tables well.

Another great thing about it is that it is a multiplication problem turned into a visual counting  problem. Since multiplication exercises don’t really make kids happy, they’d definitely love to count intersections instead (multiplication disguised intelligently).

Of course the counting can be used for single digit numbers too, but that won’t be too useful. For slightly more complex problems involving 2 digits like 32 X 42, it could be a life saver. It’s a fairly simple 3-step process. Here’s how you do 32 X 42 with it…

Step 1Step 1: The best way to go about it is by starting from the top left. First, you draw the 3 lines for the 3 of the number 32. And then you make 2 lines for the number 2, as shown.

Step 2

Step 2: Next make 4 lines and 2 lines intersecting the previously made lines as shown. Clearly, 4 lines for the 4 of 42 and 2 lines for the units place of 42.Step 3

 Step 3: Count the number of intersections in the far left (a), centre (b), and the far right (c). (a), (b) and (c) are 12, 14 and 4 respectively, for this problem.

The 1 from 14 gets carried to the number just at the right of it – 12 of (a), and (a) becomes 13. A similar carrying of the ten’s place to the immediate right column happens if there are any 2 digit numbers. So you are left with 13, 4 and 4 now. 1344 is the answer to 32 X 42.

This can be done for 3 digits too and more…
If there’s a zero, you could make a line and not count any intersections with it. As it has been shown in the video below…

Please hit like if you learnt something from this article.

Killer Whale’s Ingenious Trick To Kill Sharks

By Anupum Pant

Background

Although mosquitoes are much much deadlier, Great White Sharks no doubt are dangerous animals too. It seems as if there’s nothing this big fish fears. But even this deadly hunter gets hunted.

On the other hand, Orca or the Killer whale is a relatively cuter animal. Remember Free Willy? But to me, these seemingly cute animals are in fact shrewd hunters who like to torture their prey before eating it. They’ve learnt well the tricks of the trade. I feel they are a lot like crows. That is to say, they are extremely intelligent and learn by observing.

For instance, to make seals sitting on ice pieces fall down, the killer whales know a good trick. They make waves and make the ice sheet wobble. As a result, seals fall down. Similarly, by sneaking up, making bubbles to trap fish and by using other such methods, these genius hunters make sure they get their prey.

Also, like Daniel Kish, they use echolocation. But Orcas use it to locate the prey. Still, their intelligence doesn’t always work.

Orcas kill sharks and they know a really efficient trick to do it successfully. They flip the sharks upside down. Here’s how they exactly manage to have “Shark sushi for lunch”.

Tonic Immobility + Ram Ventilation

To kill sharks they employ this very ingenious trick. They cash in on Tonic Immobility. Ironically, Tonic immobility is a defence mechanism some sharks use. Tonic immobility is something that a number of animals use for different purposes. Mostly they do it for defence by faking death.

During this state, their breathing becomes very relaxed and they might look as it they are dead. For instance, lobsters become immobile when they are stroked on their backs. Sharks can be flipped and they become immobile (not always). Everyone knows how Possums do it – they play Possum.

Now, since some sharks can’t breathe when they stop moving, due to something called ram ventilation, they drown. And isn’t that perfect for our Killer!

The killer whale  flips the shark, puts it to sleep. The shark stops breathing and dies. Then the killer whale goes and rips apart the tongue and liver of the shark, because that is all it eats. All the other parts of the dead shark drop to the sea bed.

Even these uneaten parts don’t go to waste, the other sea creatures have the time of their life eating them. They probably thank the odd little habit of the killer whale – the habit of eating just the liver and leaving everything else.

Donating = Loving


A small donation worth a single cup of coffee from you can be the difference between this website existing or not. If you like this, please consider buying me a cup of coffee:

World’s Most Relaxing Music and a Trick to Waking Up Happy

By Anupum Pant

Warning: I like to boast in public because it helps me stick to my resolutions better. Following is a paragraph that brags a bit, so please understand…

Phew! It’s been 179 days since I started this website and there isn’t a single day I’ve missed writing something here. Some days the articles were good, other days they were awful. Good or not, at least I slept a little smarter everyday. As a result, I have documented 179 good pieces. You can check them in the archives right now. Be my guest and since it is sunday, take some time to read through some of them, find mistakes, comment etc.This, thankfully, is the 180th article that is being written on the 180th day. That’s pretty huge for me. I’ve never done something this big ever in my life before. Trust me, it is a very tough commitment. If you wish to, acknowledge it in the comments. It will mean a lot to me.

However, today due to some other important work, my article writing ritual got delayed (happens a lot), and now it’s more than an hour past midnight. Thanks to my public boasting, I will still have to keep up. No sleeping before I write something. Or, I will simply have to get shamed in public (if someone even keeps a track of my progress). Probably my sleep will have to suffer today. So I thought, to sleep efficiently, let me learn a bit about sleep!

59 Seconds again!

And as always, the YouTube channel 59 seconds came to my rescue. I love the channel so much, I’ve mentioned it in at least 5 different posts before.

Anyway, the host, Richard Wiseman has a new book in the market – Night School: Wake up to the power of sleep. It talks about the science of sleep. Whenever he has a new book, there are a few interesting videos that come up on his channel that share a very cool tidbit from the book. The book is definitely on my read list, but will have to do with a related video for now.

World’s Most Relaxing Music

One of the videos this time is one hour-long and plays a scientifically constructed music that according to the professor is the world’s most relaxing piece of music. If you keep playing it in the background while sleeping, it will help you sleep better. I’ve tried this one when I took a nap in the afternoon one day. I can vouch for it. I actually had a very relaxing nap that time.

The tune is especially relaxing because, with a 90 BPM tempo and notes moving from low to high, it is scientifically designed to help you fall asleep. Here is the piece. Play it and have a good sleep.

While this would help me fall asleep, tonight I won’t have a problem with falling asleep. As I’m tired, I’d fall asleep easily. What I’m worried about is that I might get less sleep (it really doesn’t matter, I can just wake up late tomorrow). So, here is something from the same channel that, even with a shorter sleep span, would probably help me wake up happier tomorrow.

The 90-Minute rule

During our sleep, we have these cycles where our brain takes us from light sleep to deep sleep and then to a dream state. These three states make one cycle and it takes about 90 minutes to complete a cycle. If you happen to wake in the middle of a cycle, you’d wake up cranky. The trick to waking up happier is to wake up when one of this cycles is complete. There are of course apps on the Play store that help you achieve that, but I don’t have an android phone. So here is what I can do.

I can plan an alarm in a way that I complete several 90 minute cycles and wake up at the end of the last cycle. For that, if I plan to fall asleep at 2:30 AM, to complete a fair 6 hour sleep, I’d have to put an alarm for 8:30 AM. At 8:30, I’d have completed 4 cycles.

Except that these cycles don’t last for exactly 90 minutes. Some times they are more than that, other times they last for a lesser time. Still, by measuring my sleep period in 90 minute chunks, I can increase the probability of me waking up happier. Here is the video where Richard explains this…

Hit like if you learnt something today.

Scientific Ways to Make Cut Flowers Last Longer

By Anupum Pant

Suppose, someone gives you a beautiful bouquet, celebrating a very important day of your’s, say your 50th wedding anniversary – A rare event these days. Wouldn’t it make you happier if these precious flowers last longer, even if it is just “slightly longer”? If you are a person like me who is easily moved, seeing flowers last longer would certainly make you happier!

Here are a few simple scientifically proven ways you could try that would make your cut flowers last slightly longer.

Sprite or 7-Up

Well, to make a flower last for about 3 days,  of course you could cut off an inch of the stem, clean it and put it in plain water. But there is also a little addition you can do to the water to keep them blooming for a few more days.

Add some amount of sprite or 7-Up to the water. Yes, that’s it. I know, some would consider it an urban legend or a forwarded email story, trust me, it actually works. Continue reading Scientific Ways to Make Cut Flowers Last Longer

A Mathematical Guide to Optimize Pizza Buying

By Anupum Pant

The logical engineer in me has always paid a lot of attention to how well my money is being put to use, or if something I bought was well worth it. So, before buying anything, I usually love to add in a basic mathematical calculation that would ensure the best logical use of my money. I used to do the same when I was studying engineering and had come up with a handful of tricks, which enabled me to eat the best food, in best quantities at the lowest prices.

Optimized Pizza Buying

Till date, I had relied on calculations for individual joints to buy the pizza that gave me the best value for money (irrespective of what my stomach could fit). In other words, I had never used statistical methods, as I always went to only 2 or 3 pizza places and never felt a need to do it statistically.

So yesterday, while skimming through blogs on NPR, I came across a post by Quoctrun Bui, where he had calculated the best valued pizza size using statistical methods. 

The final findings of his study based on 74,476 prices from 3,678 pizza places were condensed into a graph which depicted data as follows (here is the link to the article for an interactive version of the graph).

pizza guide

Conclusion

The above graph plots 74,476 data points to find the pizza size that gives you the best value for money. The y-axis plots price-per-square-inch – the lesser price-per-square-inch you pay, the better deal you score.

This basically means that buying the largest pizza gets the most value out of your money. As the size increases the value for money increases or the price you pay per-square-inch of pizza decreases. – Statistically speaking.

Adding value

I felt a need to add value to the study by finding how well ‘buying a large pizza’ to get the best value works in India.  So, I selected a popular joint Dominos (where I go all the time) for the test. I dug out their menu (probably an old one) to see if buying the large pizza always works in India. Here is a record of price you pay per square inch at Dominos for various sizes and categories of pizzas. (Click the image to see a better version)

pizza buying guide dominos
I did not pay much attention. Please point if there is a mistake.

Conclusion (Dominos India)

  • No, always buying the large pizza clearly is not the best option at Dominos in India.
  • A small pizza is the best option (economically) if you are buying from the categories: Simply veg, Veg I or Simply Non-veg.
  • A large pizza is the best option (economically) if you are buying from the categories: Veg II, Non-Veg I or Non-Veg II
  • Never go for the small Non-veg II pizza. It is the worst choice you can make.
  • Never ever get a medium pizza from any category!

I’d love to see someone doing the same thing for other popular pizza joints. Do get back to me if you have done it. I’ll add it to the article as an update.

Related articles

 

Enhanced by Zemanta

Ben Franklin Effect – Influencing People

By Anupum Pant

Visit blogadda.com to discover Indian blogs

Influencing people

Named after Benjamin Franklin, who observed this effect, the Ben Franklin effect is a lesser known yet interesting Psychological finding that can be used to influence people. According to it:

  1. If we do someone a favor then we tend to like them more. (read till the end for an example of a practical application)
  2. The reverse of this effect is also true – If we harm someone, we are more willing to harm them again as a result.

In the words of Benjamin Franklin:

“He that has once done you a kindness will be more ready to do you another than he whom you yourself have obliged.”

Side note: I love biographies. I love them because, there you have an access to a treasure of life-long experiences of great people. I feel, it is like collecting XP (experience) points in a Pokémon game. The more you manage to collect, the better you do in life. And biographies are one of the most efficient sources for XP.

While going through Ben’s autobiography a few months back, I found a lot of his observations to be extremely interesting and I had noted this down in my notes.

How he used his observation

He was able to befriend a rival legislator by trying this out. The following is an excerpt from his biography:

Having heard that he had in his library a certain very scarce and curious book, I wrote a note to him, expressing my desire of perusing that book, and requesting he would do me the favour of lending it to me for a few days. He sent it immediately, and I return’d it in about a week with another note, expressing strongly my sense of the favour. When we next met in the House, he spoke to me (which he had never done before), and with great civility; and he ever after manifested a readiness to serve me on all occasions, so that we became great friends, and our friendship continued to his death.

Jecker & Lendy published a study in the year 1969 which used 3 groups of students to prove this scientifically. In the study, the students from the first group liked a professor more than the other two groups. It was to this group the professor had asked for a favor.

How can you use it?

  1. If you want someone to like you (or influence someone), even though it may seem counter-intuitive, you could just ask him/her for a favor.
  2. If some random stranger asks you for a favor, you could be a little more cautious about you liking him/her.
  3. To get a better effect, ask a person who is tired.

No wonder, guys after fetching a 100 chocolate ice-cream cups for their girl-friends, only tend to fall more in love with them.