#1. A Letter To A Mature You. Usually it's the future that will reflect back to the present. But here they decided to flip that around. A mail or letter from the best person you know is exactly the best thing to receive these days. Yes you can receive a letter from past self. Try writing a letter to your future self today itself and send your future self some words of inspiration. Or just share some thoughts on where you'll or what you'll be up to in a year three ? And then they'll do some time travel magic and deliver the letter to you. You will find how you changed in this few years. It will be one of the best things you will receive in your entire life. Write a letter to the future s #2. The Actual Scenario In Space Ever wondered how tiny you are in this vast universe or how fast or slow you will move at the speed of light or how would the things look at space to you even when you are travelling at the speed of light. It's indeed hard to imagine how mind-bogglingly vast even our solar system. Which is really only a tiny tiny part of the galaxy which is itself only a tiny part. If the Moon Were Only 1 Pixel is a project by interactive media designer Josh Worth that attempts to accurately portray just how distant the Sun and planets are from each other using a single pixel to represent the Earth moon which has an actual diameter of 3474.8 kilometres for scale. Worth was inspired to work on the project after trying to ex the same concept to his young daughter. If the moon were equal to 1 pixel it'd take 17 minutes to scroll through the solar system. italic If the Moon Were Only 1 Pixel #3. 1 Minute Disposable Mail Id Want a disposable mail Id for you don't want to get spammed by various services you register yourself. Don have time to make a new email id everytime? Try disposable email which destroys itself after 1mins 1 Minute Mail - Temporary E-Mail s #4. The Death Clock Maybe this will make you realize how precious is every moment and how life is slipping away... second by second. Like the hourglass of the Net the Death Clock will remind you just how short life is. Check out how many seconds of your life is remaining! When Am I Going To Die? #5. Pixel Thoughts A 6-second meditation tool to help clear your mind. Tell here what's bothering you? Get relaxed and watch your thought. It will make you realize that life is much grander than the thought which bothering you. #6. The Last things you got Finally something's on the internet which will not let you starve anymore. Enter all the ingredients available in your fridge or kitchen you will get awesome recipes. Comes handy when nobody's home. MyFridgeFood - Home Supercook recipe search by ingredients you have at home #7. Quick Draw! Okay that's fun. A game where a neural net tries to guess what you're drawing. Interesting !!! Quick Draw! s #8. Windows 93 It looks a lot like a more primitive and meme-filled edition of Windows 95except instead of Solitaire and Internet Explorer you've got Solitude and Cat Explorer. There's also a highly improved version of MS Paint called Piskel and a hallucinatory program called Acid Box 93. That's just to name a few. Could Windows 93 be your full-time operating system? That depends Do you like drugs? If yes you might enjoy spending your day navigating the 9s-talgic world of pixelated art. If no you'll still enjoy the full-length version of Star Wars rendered in ASCII. And drugs or no drugs if you figure out what Virtual Girl does please let me know in thements. Okay this is not so useful website but definitely awesome one. italic WINDOWS93 #9. An Expert Mathematician Perfect tool to understand and solve mathsplexity. Mathway Select a subject such as Algebra Trigonometry Finite Math Chemistry Pre-Calculus Enter your question and select how mathway should answer you. And you can also check the steps how? Mathway | Math Problem Solver s #1. Is it Really Down Right Now? Ever happened something like a website stopped working only because you opened it? Sounds funny but one time or other we all felt the same way as the server goes down only when the most important work to do is to open the goddamn site toplete your research work or book your tickets. Now you can check whether it's down for everyone or especially for you because you know stopping you from doing your work is the first task for the officials. Is It Down Right Now? Website Down or Not? #11. The Software Next Door. Alternative-To is a new approach to finding good software. This site is extremely useful when you are looking for alternatives of software. Just put the name of the programme It will list some popular alternatives to your current choice of software. AlternativeTo - Crowdsourced software rmendations #12. Gravity Points Click anywhere to create a mass. Click near to it and the two will attract each other and merge to form a single mass and go on having fun with gravity. Gravity Points s There are countless sites on the Web that serve some kind of purpose. They serve important information but what about those sites that seem to have absolutely no point or any useful capability? Nevertheless we visit these websites although they are totally useless crazy weird or pointless. EDIT italic Have a look on two of my similar answers Kiranmoy Samanta's answer to What is the weirdest website on the internet? answer aid 4161277 Kiranmoy Samanta's answer to What is the most interesting website that you found on the internet? answer aid 5562747 Internet is a crazy place. Isn It ? Your Thought italic
What is the use of finding planets 2 billion light years away, which can never be reached by humans?
Let us look at this systematically. A connect-the-dots puzzle can't be solved by going direct from the first dot to the last. The same is here. We have to trace the dots one at a time not skipping any steps. 1) Finding distant planets helps us understand how and where planets form in the first place and what sorts there are. 2) Understanding planets will tell us useful information about the accretion disk that develops around young stars and what material will be in it. 3) Understanding accretion disks will tell us which planets of our solar system and which asteroids will have which minerals and metals. It will also tell us where in the disk around Alpha Centauri those minerals and elements are. In just three dots we've gone from studying far-flung planets to understanding what science has never had the tools to understand - where future miners and heavy industries need to look. Specific planets and asteroids specific locations on them specific depths. Once you can correctly model a solar system such that real-life values produce exactly what real-life says will happen you can correctly model how things form and how to identify what means what. Let's go further. We study lots of distant planets and find the total number that currently support some sort of life and themon denominator. That information directly tells us what we have to do to terraform Mars and how difficult a task it will be. These things directly impact life on Earth today. If we knew that asteroids of a certain size and distance must contain nearly pure copper a moderately rare but extremely important metal we could slash the costs of electricity slash how much has to be generated in excess of what is delivered and therefore reduce the cost of living AND the greenhouse gas pollution at the same time. If we'd built more and larger space telescopes earlier this could have already happened. If we knew how to terraform Mars or even just a containable section we could reduce the pressures on Earth by enough that we could have time to think of a better solution. But we can't even begin until we understand why life-bearing planets exist to begin with and what nature reveals about what makes those planets special. We could in principle have people living there within fifteen years. You find a lava tube you coat the inside walls to make sure air can't escape and contaminants can't get in shove a double airlock at the main entrance and another far enough down that you can access the tube proper then install full-spectrum lights and build a fully-enclosed Biosphere II with artificial lighting. Just remember you need three times the surface area per person than the original Biosphere II. You wouldn't need fifteen years for just that but the sort of power station you'd need to runmunes as isolated and fragile as this won't be developed for another decade. That wouldn't solve the overpopulation crisis it's not nearly large-enough scale but I'm guessing each such tunnel (and there are probably hundreds) could support a thousand or so people. A hundred thousand isn't much but it's a nice genetically-healthy backup where idiots cannot survive because it's an inherently dangerous environment. If you wanted amune of philosopher-scientists akin to the ancient Greek schools but on a far grander scale this is about the sort of size you'd want for an idealized university town that is self-sustainable. This is excellent because you can divorce politics from all the theoretical sciences and all the practical sciences that can be done Mars-side. But NASA does far more than look for planets or stars. Astronomy is a tiny section of the work. NASA's earth science work is far more extensive. Their insights are critical in getting weather satellites that are accurate. Light radio waves all radiation bends when the density of what it is passing through changes. If you don't understand how the atmosphere works and how it is changing in the warming climate then infrared and radar will show weather systems in the wrong place. NASA's understanding of ocean temperatures and ocean dynamics is the sole reason hurricane preductions are possible at all. You can't just look at numbers and understand them. NASA's monitoring of the polar caps also tells us a lot about weather. Hot air rises cold air sinks. The atmosphere has multiple cells but that's the bottom line. Further as the air doesn't all end up at one spot high pressures flow into low pressures. It is vital if you're to make useful forecasts to understand the size of the cells the strength of circulation and what that means for the surface. The polar vortex is only understood and forecastable because NASA has this kind of data. Next up space weather. In the 194s sunspots and major solar flares striking the Earth were assumed to be enemy radio jamming systems. They couldn't understand what was happening. It placed all aircraft in extreme danger as you can't radio navigate with no radio. Pilots got lost and died because of that. Fast-forward to today when aircraft are flying so high that a flare strike could destroy the on-board electronics in one go. That includes the black box recordings. It potentially includes bioelectronic systems such as the human brain if the altitude is great enough. A single strike could take out thousands of aircraft simultaneously maybe tens of thousands if there's congestion. Each carrying hundreds of passengers. Potentially a million lives are at stake. Today NASA has ground-based and space telescopes pointing at the sun. We can sometimes get a day's warning before disaster. Easily long enough to protect all the satellites in orbit and ensure no aircraft are at dangerous altitude anywhere or flying at all in the areas of greatest risk at the time of impact. A million lives saved every few months. The NASA team responsible should be given medals of honour by every nation on Earth for that kind of service to mankind. Name me anyone who has done as much who has saved as many whose only reward is their regular paycheck and the occasional threat of cancellation. Finally LaRC. The turf I'm most familiar with. Wonder if they still need to remind people not to jog on the jet runway. Anyways LaRC is why your airliner is unlikely to crash. Their work on aviation is absolutely brilliant which is why everyone in the industry turns to them. Bit of a slap in the face when the blended wing body project was scrapped for political reasons. Aviation should be sixteen years further ahead noise pollution and air pollution should be a quarter current levels. It could still be that way at any time if instead of scrapping NASA funding for it increased.