#popscience

(🇮🇹 nel primo commento😊) 🇬🇧 Let's go back to talk about the physics phenomenon of radiation pressure! (I'm referring to my second post😉) When a comet comes near a star it starts releasing gases in a process called outgassing. This produces a visible "coma" and sometimes a tail: the one we see in every single comet representation 🌠 This coma feels a force exerted by the star's radiation pressure, that causes the formation of a tail oriented in a way that it always points away from the star. It may feel a little counterintuitive but the tail does not "follow" the path of the comet but stays radial to its orbit around the star! This is because the pressure of the star's radiation literally pushes the particles of the coma and tail away (#socialdistance at its finest guys, the tail can reach a length of 3.8 astronomical units!!). Here I chose to show you the beautiful C/2019 Y4 (or ATLAS Y4), a comet discovered on December 28 2019 that fragmented on April 9. Swiping left instead you can watch a little animation about the behaviour of the tail of a comet! - Credit:ATLAS, Wiki - #physics #astrophysics #solarsail #spacecraft #spacemission #esa #nasa #eso #solarsystem #earth #space #popularscience #popscience #popsci #science #comet #atlasy4 #atlas #comettail #radiationpressure #orbit #star #sun https://www.instagram.com/p/B-9NdB9pAIG/?igshid=utezxqisplpa

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I look at all these people who have become something. From politics to business, from Sports to science, in real life or fiction; I see people who have become something had one thing common in them. Do you want to take a minute and make a guess? From Marie Curie to Gandhi, from Steve Jobs to Buddha, everyone had one thing in common. I don't think in their early days, they had planned of becoming someone renowned. Some of them didn't even have a goal, didn't envision what the future would look like for them. The one common thing they had was that they had fallen in love with 'something'. This 'something' comprised a lot of things: technology, science, space, insects, and what not! We cannot say everyone who had got a passion had become someone renowned but certainly they had lived a life of love and satisfaction. On contrary, many, who did not choose a path of passion, rather followed a path that would be practical/necessary would live their lives just to the purpose they chose. There will be Bread and Wine in these lives but no Sparkle in their eyes. Passion is good for our eyes, too keep them young while we grow old, to keep them soft when things around us get hard.