Oh, ffs.
almost lucid
So the night before Chem I had a dream.
I had a dream that HSC was already over and I was chilling around doing nothing. Then I suddenly realised: "Wait a minute. Lemme see if I can remember anything from the Chem test. If this is real, then I will easily be able to remember at least the last question". So I tried to remember what the test was like.
Obviously I couldn't remember as the test didn't exist. Aha, lucid dreaming here I come. But my brain is better than me.
It went NOPE NOPE NOPE NOPE YOU DON'T GET TO LUCID. And I woke up.
Dafuq is that shit, mayne.
A few minutes later I fell asleep, and ended up telling that story^, in my dreams, to a couple of people. I remember particularly that I told Tree.
So there marks the time that I was almost lucid dreaming.
I had a dream that HSC was already over and I was chilling around doing nothing. Then I suddenly realised: "Wait a minute. Lemme see if I can remember anything from the Chem test. If this is real, then I will easily be able to remember at least the last question". So I tried to remember what the test was like.
Obviously I couldn't remember as the test didn't exist. Aha, lucid dreaming here I come. But my brain is better than me.
It went NOPE NOPE NOPE NOPE YOU DON'T GET TO LUCID. And I woke up.
Dafuq is that shit, mayne.
A few minutes later I fell asleep, and ended up telling that story^, in my dreams, to a couple of people. I remember particularly that I told Tree.
So there marks the time that I was almost lucid dreaming.
fuck. yes.
To celebrate, I had a Martini.
Will move onto whiskey sour (sozza using Jack Daniels instead of good bourbon) and maybe a Mojito if I still feel like it. SO MUCH FREEDOM TO EXPERIMENT!!
Can't copy photos straight from Instagram so here's a link in case you genuinely care.
Gotta get a job too.
Good luck for interviews if you're doing those! Have funz :D
Will move onto whiskey sour (sozza using Jack Daniels instead of good bourbon) and maybe a Mojito if I still feel like it. SO MUCH FREEDOM TO EXPERIMENT!!
Can't copy photos straight from Instagram so here's a link in case you genuinely care.
Gotta get a job too.
Good luck for interviews if you're doing those! Have funz :D
c
I was reading Neil deGrasse Tyson's AMA on Reddit. I came across two shit-brix ways to interpret how light works.
Not for the faint-of-physics, but uses content from HSC Phys and before.
1) A photon will be absorbed the instant it is emitted, in its own frame of reference. All we have to do is rearrange the time dilation formula for t_0 to see that it's 0. I previously never considered this but this is goddamn cool.
2) I understood why travelling faster than the speed of light is essentially travelling back in time. It's because time is a relative concept that depends on the interactions with light that you are receiving. If you were somehow teleported 20 million light years away and had a sick telescope, you could observe the extinction of the dinosaurs. Although I don't get what would happen if you orbited the Earth a tangential velocity of greater than c, then reentered. I'm guessing that since circular motion is far from inertial, special relativity can go to hell, and nothing cool will happen =(.
It seems like the perfect tradeoff - if we could go >c, we would be able to view events from the past, at the expense of not being able to interact with them.
Not for the faint-of-physics, but uses content from HSC Phys and before.
1) A photon will be absorbed the instant it is emitted, in its own frame of reference. All we have to do is rearrange the time dilation formula for t_0 to see that it's 0. I previously never considered this but this is goddamn cool.
2) I understood why travelling faster than the speed of light is essentially travelling back in time. It's because time is a relative concept that depends on the interactions with light that you are receiving. If you were somehow teleported 20 million light years away and had a sick telescope, you could observe the extinction of the dinosaurs. Although I don't get what would happen if you orbited the Earth a tangential velocity of greater than c, then reentered. I'm guessing that since circular motion is far from inertial, special relativity can go to hell, and nothing cool will happen =(.
It seems like the perfect tradeoff - if we could go >c, we would be able to view events from the past, at the expense of not being able to interact with them.
vesper
Today I told my mum:
Me: "After I buy a bottle of gin I can make a martini!"
Mum: "Really? When we go to duty free to buy a bottle of that stuff, we pay $200, but you're telling me you can make it from a $15 bottle of vermouth and a $40 bottle of gin?"
Me (after some time): "Are you talking about Remy Martin..."
Lols.
Then I told her martinis are/were what James Bond drinks :L
Me: "After I buy a bottle of gin I can make a martini!"
Mum: "Really? When we go to duty free to buy a bottle of that stuff, we pay $200, but you're telling me you can make it from a $15 bottle of vermouth and a $40 bottle of gin?"
Me (after some time): "Are you talking about Remy Martin..."
Lols.
Then I told her martinis are/were what James Bond drinks :L
double the pressure
Two things I cannot visualise:
In one second, light travels 3e8 m, which is 30,000 km. Okay.
So a light year is several billion kilometres. Alright.
How is our NEAREST galaxy, Andromeda, 2.25million light years away?! That kind of distance is just impossible to grasp.
Next thing I can't visualise is a pressure of 2 atmospheres. I have nothing to compare with. I have one atmosphere on me right now, but I would have no idea what double that would feel like. Like when I'm at the bottom of the pool, I have no idea if that's 2 atm or 20atm. Or only 1.01atm.
While we're at it, I suck totally at guessing weights below 500g. I cannot tell the goddamn difference between 200g and 400g from memory.
In one second, light travels 3e8 m, which is 30,000 km. Okay.
So a light year is several billion kilometres. Alright.
How is our NEAREST galaxy, Andromeda, 2.25million light years away?! That kind of distance is just impossible to grasp.
Next thing I can't visualise is a pressure of 2 atmospheres. I have nothing to compare with. I have one atmosphere on me right now, but I would have no idea what double that would feel like. Like when I'm at the bottom of the pool, I have no idea if that's 2 atm or 20atm. Or only 1.01atm.
While we're at it, I suck totally at guessing weights below 500g. I cannot tell the goddamn difference between 200g and 400g from memory.
p-p-p-p-p-p-POWAH
Background for non-physics people
- Superconductors can carry a huge electrical current when they are cooled to almost absolute zero.
- Superconductors make really good electromagnets
- Electromagnets can be used to deflect cosmic particles, which mess up computers and give people cancer
Detech skillz!
Jeff says (8:45 PM):
*the proposed model for superconducting wores was
*running liquid helium through the core of the wire
Jeff says (8:46 PM):
*which sounds inefficient as all fuck
Max says (8:46 PM):
*mmmm
Jeff says (8:46 PM):
*unless it's under the ocean shit
Max says (8:46 PM):
*well if you could get a nice vacuum
*could be okay
*omg does that mean in space
*superconductors are fucking mad
Jeff says (8:46 PM):
*vacuum prevents losses to convection
*but not radiation
*ooh it would
Max says (8:47 PM):
*ooooh forgot about that
Jeff says (8:47 PM):
*as in just have some on the outside of your ship
*and when you hit space
*FREE POWAH
Max says (8:47 PM):
*LOL
Jeff says (8:47 PM):
*if it doesn't burn away
Max says (8:47 PM):
*and your solar panels at the front go
*NGEWWEEEEEEEE MAKE POWAH
Jeff says (8:47 PM):
*dude it would be hax
*oh it would power that magnetosphere!
Max says (8:47 PM):
*hahahhaahahahaha
Jeff says (8:47 PM):
*in 2008
Max says (8:47 PM):
*LOL YES
Jeff says (8:47 PM):
*THE MORE SUN YOU GET
*THE MORE IT DEFLECTS
*AHAHAHA
Max says (8:47 PM):
*THE MORE POWAH
Jeff says (8:47 PM):
*OMFG
Max says (8:47 PM):
*DOOOD OOOD ODDOOOO
Jeff says (8:47 PM):
*PERFECT
Max says (8:47 PM):
*THE SHAMPOO GUY LOL
Jeff says (8:48 PM):
*AHAHAHA
Max says (8:48 PM):
*do you know what im talking about hahahahah
Jeff says (8:48 PM):
*old spice right
Max says (8:48 PM):
*yeah!
Jeff says (8:48 PM):
*i'ma posting this shit it's so hax
Patent pending.
Addendum:
Tom said "space isnt cold". Interestingly, he may have a point.
Space definitely has a low temperature. Temperature is the measure of excitement of the surrounding molecules, and since there are almost no molecules in space, you get no temperature. If you put a thermometer in space, you'll have to wait forever for a gas molecule to impact on the glass.
However, space is also a vacuum. That means the only way anything can lose heat is via radiation. The way objects lose heat (on Earth) is mainly via convection, which is imparting heat onto surrounding molecules. There are no molecules in space, so heat takes much longer than expected to dissipate into space.
So while it has a low temperature, that low temperature does not mean it sucks heat out of objects quickly. Cool!
- Superconductors can carry a huge electrical current when they are cooled to almost absolute zero.
- Superconductors make really good electromagnets
- Electromagnets can be used to deflect cosmic particles, which mess up computers and give people cancer
Detech skillz!
Jeff says (8:45 PM):
*the proposed model for superconducting wores was
*running liquid helium through the core of the wire
Jeff says (8:46 PM):
*which sounds inefficient as all fuck
Max says (8:46 PM):
*mmmm
Jeff says (8:46 PM):
*unless it's under the ocean shit
Max says (8:46 PM):
*well if you could get a nice vacuum
*could be okay
*omg does that mean in space
*superconductors are fucking mad
Jeff says (8:46 PM):
*vacuum prevents losses to convection
*but not radiation
*ooh it would
Max says (8:47 PM):
*ooooh forgot about that
Jeff says (8:47 PM):
*as in just have some on the outside of your ship
*and when you hit space
*FREE POWAH
Max says (8:47 PM):
*LOL
Jeff says (8:47 PM):
*if it doesn't burn away
Max says (8:47 PM):
*and your solar panels at the front go
*NGEWWEEEEEEEE MAKE POWAH
Jeff says (8:47 PM):
*dude it would be hax
*oh it would power that magnetosphere!
Max says (8:47 PM):
*hahahhaahahahaha
Jeff says (8:47 PM):
*in 2008
Max says (8:47 PM):
*LOL YES
Jeff says (8:47 PM):
*THE MORE SUN YOU GET
*THE MORE IT DEFLECTS
*AHAHAHA
Max says (8:47 PM):
*THE MORE POWAH
Jeff says (8:47 PM):
*OMFG
Max says (8:47 PM):
*DOOOD OOOD ODDOOOO
Jeff says (8:47 PM):
*PERFECT
Max says (8:47 PM):
*THE SHAMPOO GUY LOL
Jeff says (8:48 PM):
*AHAHAHA
Max says (8:48 PM):
*do you know what im talking about hahahahah
Jeff says (8:48 PM):
*old spice right
Max says (8:48 PM):
*yeah!
Jeff says (8:48 PM):
*i'ma posting this shit it's so hax
Patent pending.
Addendum:
Tom said "space isnt cold". Interestingly, he may have a point.
Space definitely has a low temperature. Temperature is the measure of excitement of the surrounding molecules, and since there are almost no molecules in space, you get no temperature. If you put a thermometer in space, you'll have to wait forever for a gas molecule to impact on the glass.
However, space is also a vacuum. That means the only way anything can lose heat is via radiation. The way objects lose heat (on Earth) is mainly via convection, which is imparting heat onto surrounding molecules. There are no molecules in space, so heat takes much longer than expected to dissipate into space.
So while it has a low temperature, that low temperature does not mean it sucks heat out of objects quickly. Cool!
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