Hot Air Balloons and Aeroplanes

Les Folles Marquises, a gorgeous little etsy store, sent me some of the cutest ever necklaces! I can't even tell you how in love I am with this handmade doll necklace. I wore it to my exam as my good-luck charm (not that I'm at all superstitious nor believe she bestowed good luck upon me, but being able to look at the necklace during my exam did make me smile! Which has gotta help, right?) As a side note, Les Folles Marquises, according to google translate, is "The Crazy Canopies" in English - any French speakers want to tell me if that is at all correct? What a cute name for a cute store, though! And although you'll all know me as an advocate of cheap clothes, if something is handmade this well, it's definitely worth paying more for. I've been making some pretty great thrift-shop finds lately, like this pink cardigan and velvet fitted blazer. Every winter I only ever seem to have one cardigan and one coat which I end up wearing every day, which just makes winter even more depressing, so this year I am making an effort to own quite a few different coats, sweaters and cardigans so I can mix and match them (almost) as frequently as my dresses! Op-shops are definitely the best place to get coats and cardigans from, especially as they are usually under $10 - I don't think I've owned many "new" ones in quite a number of years. dress - c/o Sheinside necklace - c/o Les Folles Marquises cardigan - Thrifted blazer - Thrifted hat - c/o Wholesale socks - c/o OASAP shoes - Yeswalker And isn't this balloon-print Sheinside dress super cute, and just the perfect amount of quirky? Speaking of Sheinside, I have the winner of the Sheinside giveaway to announce. Is this you below? If so... congratulations! You have won a $100 gift voucher to spend at Sheinside. And I highly recommend the dress I am currently wearing ;) So I'm going on an plane to Italy in just a week's time from now. Whenever I go on an aeroplane, at at least one point in the flight I will freak out and go "HOW ARE WE POSSIBLY DOING THIS?!" Knowing really nothing about physics, I am as ignorant as caveman trying to comprehend a smartphone (in fact... I don't really know much about that one, either). I just think that the fact that something as big and heavy as a plane full of people hanging around apparently weightless in the air is insane. And if anyone asked me how planes stayed in the air, I probably wouldn't be able to give them a very good answer, either, apart from mumbling something vague about thrust and lift. And I like to know how things work, rather than just blindly accepting them as fact. So flight is actually kind of simple on the surface. There are four main forces all vying for dominance of your aircraft. You have thrust, which is what the engines provide - propelling you forward - drag, which pulls you backwards, weight, which drags you back down towards the earth, and lift, which is the one that holds you up in the air and is provided by the wings. Lift is the one that helps hold a super heavy object up in the air, and is the cause of my freaking-out. (Image source) Aeroplane wings give you lift, because of the relative differences in speed between a solid object (the wings) and a fluid object (the air). The wing deflects the air above and below the wing, splitting it into two directions. The shape of the wing makes sure that the air that goes over the top moves faster than the air on the bottom. And when air speeds up, its pressure drops, so there is more pressure pushing up from the bottom of the wing, than from the top of the wing. That's how you get lifted up into the air! The speed of sound is what is known as "Mach 1", and commercial planes don't fly this fast, however, the plane I am going on travels at Mach 0.85. That is 85% of the speed of sound, or about 280 metres per second. That is just a little over 1000 kilometres an hour (621 mph). That's... really, really fast. And a good way to segue into this XKCD comic. Speculative physics is even more fun than actual physics. If you could make a stereo fly past someone at twice the speed of sound (Mach 2), then would it sound like it was playing backwards to someone who was sitting by? The answer is yes, the song would sound like it was playing backwards. The stereo is flying faster than the sound it is playing can travel (sound travels at the speed of... well... sound), so the stereo would reach you first, followed by the sound it emitted one second ago, then two seconds ago, then three seconds ago, etc. I can hardly wrap my head around it, but I think that it is one of the coolest thought experiments ever (plus, it's an awesome fact to tell people at parties). Read the whole comic here (especially if you've never seen XKCD's 'What If?' site before.) Bloglovin' | Facebook | Twitter |  Instagram | Chictopia | Lookbook | Tumblr