The Future is Here

  How does a Lie detector work? A lie detector, also known as a Polygraph test works by detecting physiological changes due to a psychological stimulus. The earliest version of the instrument was developed in 1921 by John Larson who combined changes in respiration, heart rate and blood pressure as physiological changes that occur when a person is lying. The modern polygraph is a technologically advanced system that measures the same parameters with high levels of accuracy with computers.  The theory behind lie detection tests are that when people are lying they experience a different emotional state when compared to telling the truth, it is believed that in high stake scenarios, being anxious or afraid of getting caught when being guilty of an offense manifests physiologically. This is due to the sympathetic nervous systems response of flight and fight that releases hormones which increase heart rate, elevate body temperature and respiration.  The term polygraph origi...

How does a Ball Point Pen work? A Ball point pen is a pen that uses a small rotating ball made of brass, steel, or tungsten carbide to disperse ink as you write. All of the pens that preceded the ballpoint -- whether quill, metal or fountain -- used a watery, dark india ink that fed through the pen using capillary action. The ink can flow unevenly. The ball is located in between the ink reservoir and the paper by a socket , and while it's in tight, it has enough room to roll around as you write. As the pen moves across the paper, the ball turns and gravity forces the ink down the reservoir and onto the ball where it is transferred onto the paper. It's this rolling mechanism that allows the ink to flow onto the top of the ball and roll onto the paper you're writing on, while at the same time sealing the ink from the air so it does not dry in the reservoir.

What Is The Metaverse? The coining of the term “Metaverse” is credited to author Neal Stephenson from his science fiction novel “Snow Crash” in 1992. The novel envisioned the next internet iteration where lifelike virtual avatars connect with one another through virtual reality environments and realistic 3D buildings. Since then, technology advancements have enabled the beginning development of the metaverse with a combination of computers, wearable technology, and machinery, such as virtual reality headsets, augmented reality glasses, motion sensors, and game consoles where users are able to “live” within a digital universe. Our current contemporary internet experience is two-dimensional where you scroll through and browse everything on a screen. The metaverse on the other hand is 3D , allowing you to “walk” through the two interwoven worlds via connected glasses or headsets that allow you to construct or participate in any universe you desire in the digital world. In si...

What Do We Actually Smell When It Rains? When those first fat drops of summer rain fall to the hot, dry ground, have you ever noticed a distinctive odor? Of course rain itself has no scent. But moments before a rain event, an “earthy” smell known as petrichor does permeate the air. People call it musky, fresh, generally pleasant. Petrichor is the term coined by Australian scientists in 1964 to describe the unique, earthy smell associated with rain. It is caused by the water from the rain, along with certain compounds like ozone, geosmin, and plant oils. Petrichor is a combination of fragrant chemical compounds . Some are from oils made by plants. The main contributor to petrichor are actinobacteria. These tiny microorganisms can be found in rural and urban areas as well as in marine environments. They decompose dead or decaying organic matter into simple chemical compounds which can then become nutrients for developing plants and other organisms. A byproduct of their activity is ...

  What Are Olympic Gold Medals Actually Made Of? If you’ve watched the Olympics, you may have wondered to yourself: Are Olympic medals real gold? And if they are, how much is an Olympic medal worth if an Olympian chose to sell theirs? We break down those answers ahead. Olympic gold medals have some gold in them, but they’re mostly made of silver . According to the International Olympic Committee (IOC) , gold and silver medals are required to be at least 92.5 percent silver . The gold in gold medals is in the plating in the outside and must consist of at least 6 grams of pure gold . As fans may have noticed, many gold medal winners will pose with their medal in their mouth on the winner’s podium , as if they’re about to take a bite out of it. While real gold dents , viewers won’t see much of a difference in Olympic gold medals as they’re made of mostly silver. Silver medals, on the other hand, are made of pure silver, while bronze medals are 95 percent copper and 5 percent zinc....

  What is the difference between Venom and Poison? Venom and Poison are both toxic substances. Still, some animals are called venomous and others are poisonous. The only difference between being called poisonous or venomous is in the way these animals deliver the harmful substance. Venom: When animals like snakes use their sharp fangs to bite into the flesh and let the toxic substance move into the body of their prey,  through the punctured skin, they are called venomous animals. To deliver venom an animal has to use tools like fangs or stingers. Poison: Poison is something that can get inhaled, ingested or seeped into the skin directly. For example, if you accidentally touch a brightly colored poison dart frog, you will transfer the toxins it secretes from its skin, to your own skin. And then the poison will seep into your blood stream.

Why do Passports only come in Four Colors? Red, green, blue and black are the shades that control the universe of passports and all of these have a good reason for it. There are some reasons to attribute to the choice of passport colors. The colors of the passports are limited, nations keep testing with the shades of these four main colors that may be attributed to "many possible scenarios." Blue: Countries having blue colored passports are supposed to be the part of the so-called 'new-world' League of Nations. These nations are India, North America, South America and Australia among others. Red: Red is supposed to be the color of the communist movement in all over the world. This color usually belongs to countries, which are known for having a communist history or still have its influence. Key examples of this type are China, Russia Serbia and Latvia. Green: As per the Business Insider, religious faiths play a role in the color of the passport. This is the ...

  How do Spiders make Web?  Spiders produce silk threads to build their webs. The silk is produced in silk glands with the help of the spider's spinnerets. Spinnerets are special organs that allow the spider to decide what type of thread it needs for the web. The silk threads can be thick or thin, dry or sticky, beaded or smooth. The threads a spider uses to construct its web begin as liquid, but they dry quickly in the air. When a spider begins a web, it releases a silk thread. It anchors the thread to some object — a branch, a corner of a room, a doorframe — wherever it builds its web. As the spider moves back and forth, it adds more threads, strengthening the web and creating a pattern. Lines that go from the center of the web outward are called "radial lines." They support the web. Threads that go around and around the web are called "orb lines." When a spider catches prey in the sticky strands of its web , it approaches the trapped insect and uses its ...

  Why Does Body Temperature Rise During Fever? We have three groups of neurons in the hypothalamus , at the base of the brain, that are responsible for regulating body temperature: a hypothalamic thermostat that monitors skin temperature (via incoming signals from nerve fibers) and blood temperature ; a heat-promoting center that raises body temperature; and a heat-losing center that lowers body temperature. An infection stimulates the immune system to produce chemicals called endogenous pyrogens. These and prostaglandin E2 raise the set point of the hypothalamic thermostat ( like turning up the thermostat in your house ). The heat-promoting center constricts blood vessels near the skin surface so more heat is retained in the body, and if that’s not enough, it stimulates shivering to generate more heat, until the body temperature reaches the new set point. The elevated temperature makes it harder for bacteria and viruses to multiply, so the immune system can overwhelm these pa...

  How do Bluetooth devices work? Bluetooth uses radio waves instead of wires or cables to transmit information between electronic devices over short-distances. Unlike your cellphone, which uses radio waves to communicate with a cell tower several miles away, the radio waves Bluetooth products use are 1000 times weaker and only travel small distances between the two communicating devices, usually 10 feet or less. If you have a wireless Bluetooth keyboard for your computer, and you take the keyboard to a friend’s house but leave the computer at home, your keyboard won’t be able to communicate with the computer over such a distance. And if you type on it, nothing will appear on your computer screen at home. When Bluetooth-enabled devices are close enough, they can connect with each other through a tiny computer chip inside them that emits the special Bluetooth radio waves. But first, you have to turn on this chip, which you can usually do by pressing a specific button or flipping...

  English: Q: What are some tips for improving your English writing skills? A: Some tips for improving your English writing skills include reading extensively, practicing writing regularly, studying grammar and syntax, seeking feedback from others, and using online resources such as grammar checkers and thesauruses. Q: How can you expand your vocabulary in English? A: Some ways to expand your vocabulary in English include reading widely, using a dictionary and thesaurus, learning new words in context, practicing with flashcards or word games, and using new words in your writing and speaking. Q: What are some common grammar mistakes to avoid in English? A: Some common grammar mistakes to avoid in English include subject-verb agreement errors, using the wrong tense, misusing prepositions, confusing homophones, and making punctuation errors. Psychology: Q: What is the nature vs. nurture debate in psychology? A: The nature vs. nurture debate in psychology is the argument about whether ...

  "We are all tied to the same core. But like a circle, we are facing different directions wherever we stand in life' THE Q&A POST THE INTERVIEW (PART 2) I don’t like my job, I mean I know I would be more at peace if i were doing my own thing, but still I am a fairly motivated employee of a very big company. Probably the biggest company in the world in what we do. It sends us on regular occasions to seminars and sessions where we get to learn the true meaning of success. I need you to define for me what is the core of success? Everyone defines it differently. I am very confused as to whether I wasted my life and put my kids in a wrong direction after I read your article. You’ve successfully made me think about this and I agree its the most serious issue but I have a hard time relating all this with all the successful people in the world who think otherwise. Please elaborate in private or in public but in detail please. (13 people asked of what is summed up in this question...

  Among so many people claiming to be great leaders? How do we choose a leader to begin with? Don’t choose a leader, it’s a shame if you start from there. There are no basis for choosing a leader for anything other than how many people are following him and that's the one thing totally irrelevant from the core. Its a wrong indicator made to look right. Even Prophets almost never won the game of numbers. So always start from choosing your purpose. If you don’t have a defined purpose statement of your own self, then every tom dick and harry is your leader just because everyone you know is following him and most of all if you don’t have a clear and high purpose defined for your own self, you wont know how to disqualify the people known as leaders to begin with. This purpose will give you not only clarity but confidence to qualify people. The higher your purpose is the more leaders you will be able to disqualify or qualify. This is where the Prophets of God Almighty become so great. Si...

Vocabulary plays a vital role in our daily communication. A vast vocabulary enables us to express our thoughts, ideas, and feelings with clarity and precision. However, expanding your vocabulary can be challenging, especially if you're not a native English speaker. Fortunately, there are numerous techniques for learning and remembering new words that can help you improve your vocabulary and communication skills. In this article, we'll explore some of the most effective techniques and share some interesting facts and figures about the English language. The English Language: Facts and Figures English is one of the most widely spoken languages in the world, with over 1.5 billion people speaking it as their first, second, or third language. It's also the official language of over 50 countries and the most commonly used language in international business, science, and technology. English has over 170,000 words in current use, with an additional 47,000 obsolete words that a...

English is one of the most widely spoken languages in the world, with over 1.5 billion people using it in various capacities, whether it be as their first language, a second language, or a language used for business or travel. It is the official language of 53 countries and is recognized as the lingua franca of international communication. However, despite its popularity, the English language is still full of surprises and intricacies that make it a fascinating subject of study. One of the most interesting things about the English language is its evolution over time. English is a Germanic language, but it has been heavily influenced by other languages, such as Latin, French, and Greek. The English language that we speak today is a product of centuries of linguistic evolution, and its history is reflected in the many quirks and peculiarities that make it such an interesting subject of study. For example, did you know that the English language has more words than any other language in ...