Tech Facts

Hello friends, in this session, we are goingto talk about something that we have seen throughout the course of our life. Something,which we see a lot and of which we understand only little about.It is what separates the day from the night. Its what you want to see when you are in thedarkest hour and hope things are going to be alright. It comes in many colors, but collectivelyits white. When it comes to speed, nothing can be compared to the power of its flight.Believe it or not, its also responsible for the joy of sight. What is it ????........It'slight.  Whether its the enjoyment of looking at ourself in the mirror or the beauty of nature or this colorful world we live in, at thevery base of our good fortune, is the phenomenon of light.For centuries, across many cultures, the sun has been considered as the giver of life onearth and has been worshipped as a source and symbol of light. So what is the relationbetween light and life?? Well that is easy.in our biology video...

 On December 18 ,1958, America launched a rocket that broadcasted a Christmas message from space The message was recorded by Dwight D. Eisenhower,who was the president of the United States at the time.  The mission was considered a great success, as it launched the first ever communications satellite into orbit, and laid the foundation for what is now an essential multi-billion dollar industry today. The communication satellite used to broadcastthe Christmas message came to be known as the "talking Atlas”, as it was launchedaboard an Atlas rocket. A rocket is exactly what you think it is - along, thin metallic cylinder with a pointed nose that shoots up from the ground, leavinga gigantic cloud of smoke in its wake. However, there is more to it than that; thereare a number of other things that make a rocket functional and useful. The word ‘rocket’ can mean different thingsin different contexts. Simply put, a rocket is a spacecraft, missile,aircraft or other vehicl...

All I needed now was a party with some family friends and their kids This is how much energy is in the battery. We need to get it from empty all the way up to the full That's where I need you guys because what happens is as you go down on this zipline It charges the battery The worst part about a zipline is when you have to go down and then drag it back up the hill But I've got a little remote control here watch this Is that cool? You guys want to ride that? you ready?  Mechanical advantage of the sloped Hill disguises it well But the amount of energy they are adding to our zipline system here by running up the hill just one time is the same energy used for the world record dead lift And to provide power to their leg muscles we repurposed our lemon battery lemons into fresh lemonade and Everyone had to take a drink before running up the hill because as they say when life gives you 1200 lemons make lemonade Then force kids to drink it to power your regenerative zipline S...

 Black holes are some of the most powerful and violent objects in the universe. They can warp space and time and rip entire stars to pieces. So, what if I told you that astrophysicists think there's one lurking inour very own solar system? Then a new discovery rocked the astronomicalworld to its foundation.  Now, before you freak out, you should know thatour planet isn't about to get sucked up andreappear in another galaxy. If there is a black hole, it's at least 20 times farther from Earth than the furthest planet, Neptune, in a distant region of our solar system called the extended Kuiper Belt.  The belt is home tobillions of icy objects, like comets and asteroids. And in 2016, astronomersKonstantin Batygin and Mike Brown noticed that some of them have highly unusual orbits. While most objects in our solar system orbit the same plane, andin the same direction, the orbit of theseobjects looks like this. Some of them orbit on a slight tilt. Others orbit backwar...

With our deep learning, we'll see an object in front of us. We need to tell whether she is a human, a pile of bricks, or a chair. And even if you tell it is a human, we must think, 'What isa human going to do next?' Are you going to turn left? Are you gonna turn right? Going to jump in front of us? [Robot] Hi, so sorry,but you're in my way. Could you please move? LionsBot, we makeprofessional cleaning robots so the cleaners don'thave to work so hard.  Singapore is the Lion City, so the lion is the emblem of Singapore. Hence, our robots are LionsBot, and at the heart of every robot, there is one grain of sand from Singapore, and it brings the love andthe technology of Singapore to the rest of the world. We have multiple sensors,each feeding in information multiple times a second. In robots, anyone canput in a lot of sonars, a lot of sensors, butit is how we use them, how we make intelligent decisions with that information that counts. [Laurence Liew] ...

 It definitely hurts. Hi, I'm Nayan, and I've been wearing glasses for 8 years and contacts for about three. I was always hesitant about getting LASIK because it's expensive, and the idea of lasers cuttingup my cornea scares me. But recently, my contactshave been getting really uncomfortable,and I just got to a point where I was mentallyand financially prepared to take this next step. Ideally, doing this surgery would mean I could see perfectly clearlywithout glasses or contacts for the rest of my life. And that would be so amazing because I wouldn't haveto deal with dry eyes from wearing contacts all day, spend money on contactsand solution every year (which does add up), and theinconvenience when I travel. But first, I needed tosee if I even qualify for laser eye surgery.  So, I went to my eye doctorfor a free consultation, and he told me that there were four things that he looks for during the examination: a stabilized prescription, how much treatme...

 What could a future with electric planes look like? $25 tickets, quieter airports, or even shorter runways. Companies have been betting on battery-powered planesfor this cleaner future. But even though electric planes have been around since the 1970s, they haven't really taken off. So, what's keeping them grounded? In the late 1800s, two French army officers experimented with electricity to propel an airship, but they ran into problems when the battery justcouldn't hold enough energy. This would become a recurring problem for the next 100 years.  When nickel-cadmiumbatteries were invented, the first flight with anelectric motor took off, but it only lasted less than 15 minutes. Then, in the 1980s, lithium-ion batteries were invented. They could store morepower than ever before, leading to planes likethe Solar Impulse 2. Starting in 2015, thesolar-powered aircraft spent 16 months flying around the world, except it flew at an average speed of 28 to 34 mph. Solar I...

Across the globe, companies and organizations began shifting production to meet the demand formuch-needed ventilators. In Europe, scuba diving masks became a new tool to fight COVID-19. An Israeli missile company now makes life-saving breathing machines. And, in the United States, Tesla engineers designed ventilators made from spare electric car parts. In late March, ElonMusk, the CEO of Tesla, offered free ventilators tohospitals that needed them.  But, these machines,designed for sleep apnea, had to be converted by doctors at a New York City hospital. Now, Tesla employees created a prototype made from Model 3 parts. - We've been working on developing our own ventilatordesign, specifically one that's heavily based on Tesla car parts. You can see that all the red parts here are a Tesla vehicle part, so we've used a lot of those. - This touch screen is powered by the Model 3 infotainment computer in here, which controls Model3 vehicle controllers. - In Michigan, ...