It’s been a long time

Hiya.

My how time has flown! Two years since I last showed my face around these parts (metaphorically speaking). A lot has happened.

I’ve grown up some, though not nearly enough.

The situation in South Africa has grown much, much darker, and I have grown brighter to compensate, so barring the twice-weekly bout of depression, I do enough laughing and smiling and merry whistling for the whole of Pretoria – as I have always done. I am often happy, never more so than when I’m nose-deep in such interesting books as Nielsen and Chuang, or Shankar, but the past few years have taken their toll, and when I forget myself I’m a right miserable person. Financial situation is grim to say the least, so I have to be the absolute best physics student in the whole wide world in the hope that I’ll get admitted to one of the top US universities where funding for grad students is plentiful. And then there’s the slight problem that not many universities seem to be all that interested in quantum information, seeing as the technology catch-up game is finally coming to a close and the building of physical machines is the topmost priority for the next decade or so. So it’s – to some extent –  either the top universities or nothing for me. I’m really scared. I honestly don’t know if I have what it takes. I think I’m sharp enough, but physics is above all something that takes an unbelievably large amount of practice and dedication and time. I’ve never had to work hard in my life, and I’ve never really been challenged to think in my physics education so far. Things are changing fast, and all of a sudden I feel lost. Completely and Utterly lost.

So now I’m trying to grow up fast. Trying to learn all the things that I missed out on in the mad rush to get through university too young. Learning to sit through hours of exercises a day, because confidence is a tricky thing for a physics student, and practice the only remedy. I’m also learning to love studying. It’s only in the past year that I’ve met people who genuinely care for knowledge and books and spending hours on proofs. Having good friends who are students in the true sense of the word has changed my life. But still, I’m too strange to quite fit in; I have good friends but no close ones, and when it’s just me and my stacks of textbooks and my mountains of fears and a wee bit of impostor syndrome, I feel frighteningly alone and miserable and I forget to see the beauty in learning.

Argh. I probably could have said that better. I’m tired, or more accurately, pê.  I shall edit later.

In other news:

I’ve started drawing again; even trying portraits now, but only every fifth one is any good. If you ask nicely I’ll share my best attempts.

I’m also a bona fide linux boffin. I don’t suppose anyone reading really cares all that much, but to me it matters a lot. It means I say no to using Microsoft, which I truly believe to be evil. In future posts I shall try my very best to convert my audience, and any unfortunate strangers to stumble upon my blog, but for now I’ll say: That was hi, this is bye, but rest assured that I shall start posting again soon.

Cheers,

Hjalmar

Hello Again

Much has changed. In fact, I had a good mind to start a new blog, but it would have been quite a bother to amass such a stupendously large (99) amount of followers again. So I’m back. Or at least a slighty older me is back – older mind you, grownupness subject to debate. I started university this year, started watching anime as well, and stopped watching anime. Apparently A-Levels only carry one through first semester. Given the severe lack of time I have little idea why I am blogging right now. Truth be told, I have never written a proper blog post – mostly due to my lack of confidence in writing skills being second only to my lack of confidence in my chemistry marks. I guess making a fool of myself stopped mattering about one month into uni; if one embarassing mistake is followed by a worse one, one starts forgetting it all. As I was saying, I have never had any intention of writing a proper blog post, but maybe I shall. I have some opinions on a certain anime series, garaunteed to be of no interest to you and to gain me a few million enemies. I most certainly won’t write about that. Maybe I’ll write about how horribly difficult Mathematics 124 is. No, that would be rather amusing for me, but the rest of the world couldn’t care less or thinks Chemistry 127 is worse. Maybe I shall not write about anything, because I don’t really have anything to write about, or maybe I shall promise to not say another word and to keep posting drawings and photos and low-poly 3D art. Yes. I’ve said hello, I’ve explained my absence and now I can shut up. Cheerio, and thanks for never having bothered to press the unfollow button!

 

RGB holography

I will not describe how to make a hologram because I am extremely lazy and I want to somehow get round to blogging. If you don’t know, read up. That’s what I am currently doing.

I have not yet managed to get my hands on any proper holography books so I am either completely wrong in what I am about to say or someone has done it before.

Set up three lazers, one red, one green, one blue along with mirrors so that they all reach the object from the same direction. Create three seperate transmission holograms, one for each lazer. Stitch the developed film together and play it back in a loop like a film movie. Open and close the correct lazer shutters in sinc with the ‘movie’ and persistence of vision should combine the r,g and b holograms into a full colour hologram.