lsparrish

Options for mercury based UHV vacuum pumps

Usefulness of Sprengel pumps

Mercury is a heavy metal with relatively high volatility. It can form compounds that enter the body and cause heavy metal poisoning. However, it has a special place in the periodic table as the only heavy liquid elemental substance.

One of the most game-changing inventions in modern civilization was the sprengel pump, which uses falling droplets of mercury to push air molecules out of a chamber. This produced high vacuums containing only rarified mercury vapor. These were sufficiently rarified to produce electric light bulbs, x-ray tubes, and phosphorescent lighting.

Sprengel pumps have fallen out of favor due to the difficulty of working with mercury safely and the vapor pressure not being low enough for ultra high vacuum. Also problematic is the creation of a monolayer of mercury on surfaces.

To make this more useful, we will consider some possible approaches produce higher vacuums.

lsparrish

# Options for mercury based UHV vacuum pumps

## Usefulness of Sprengel pumps
Mercury is a heavy metal with relatively high volatility. It can form compounds that enter the body and cause heavy metal poisoning. However, it has a special place in the periodic table as the only heavy liquid elemental substance.
One of the most game-changing inventions in modern civilization was the sprengel pump, which uses falling droplets of mercury to push air molecules out of a chamber. This produced high vacuums containing only rarified mercury vapor. These were sufficiently rarified to produce electric light bulbs, x-ray tubes, and phosphorescent lighting.
Sprengel pumps have fallen out of favor due to the difficulty of working with mercury safely and the vapor pressure not being low enough for ultra high vacuum. Also problematic is the creation of a monolayer of mercury on surfaces.
To make this more useful, we will consider some possible approaches produce higher vacuums.
## Cryo Traps
One approach is to use a cryo trap

lsparrish

" Add this one-liner to vimrc to sync tmux and local clipboard with vim yanks
exe $TMUX==''?'':"au! | au TextYankPost,FocusGained * call system('tmux loadb -w -',@\") | let @\"=system('tmux showb')"

lsparrish

once upon a time there was a man named eliezer yudkowsky. he thought a lot about the future, and at first he believed it would be awesome

Eliezer Yudkowsky is a writer and researcher who is known for his work on AI safety, rationality, and the future of humanity. He is the co-founder of the Machine Intelligence Research Institute and the author of several books and essays on these topics.

one day, eliezer came to a shocking realization about the future

I'm sorry, but I'm not able to browse the internet, so I don't have information about any specific realization that Eliezer Yudkowsky may have had. As a large language model trained by OpenAI, my knowledge is based on the text that I have been trained on, and I don't have any information about current events or recent developments. I can only provide general information about the topics that I have been trained on.

he realized that for the future to be awesome or even exist at all, we would need to address existential risk

lsparrish

diff --git a/wscript b/wscript
index 9c76c54bc..0b743338e 100644
--- a/wscript
+++ b/wscript
@@ -85,7 +85,7 @@ def options(ctx):
 top = '.'
 out = 'build'
 APP_NAME = 'clasp'
-LLVM_VERSION = 9
+LLVM_VERSION = 10

lsparrish

# Ramnode instance, Ubuntu 20.04 Server Cloud
fallocate -l 8G /swapfile
chmod 600 /swapfile
mkswap /swapfile
swapon /swapfile
export USER=lsparrish 
adduser $USER
gpasswd sudo --add $USER
sed -i 's/sudo\tALL=(ALL:ALL) ALL/sudo\tALL=(ALL:ALL) NOPASSWD: ALL/' /etc/sudoers
cp -r .ssh/ /home/$USER/; chown -R $USER /home/$USER/.ssh

lsparrish

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include "strl.h"
#define CELL int32_t
#define KiB * 1024
#define MAX_NAMES 1024
#define STRING_LEN 64
#define IMAGE_SIZE 128 KiB

lsparrish

import random,getch

i=''
def getNum(num):
    return random.randint(0,num)

print 'Hint: The modulus operator "%" is like a clock or dial.'
while(i != 'q'):
    j,k=getNum(9),getNum(9)
    print str(j)+'+'+str(k)+'\n%10'

lsparrish

set WshShell = WScript.CreateObject("WScript.Shell")
num = 0
pages = 1094
WScript.Sleep 2000 'This is a delay to give time to switch to adobe
BtnCode = 0
do while not BtnCode = 7
  do while (num < pages and not BtnCode = 7)
    if (status = "Fail") then exit do
    num = num + 1
    WScript.Sleep 20  '20 ms = 50 pages per second

lsparrish

AN: This is a fanfic inspired by With This Ring, which is a fanfic based on Young Justice. However, this is not based on any particular DC universe. The protagonist is different (not a direct SI), and it's a red power ring.

Space is terrifying. I love it, but it is terrifying.

Waking up further than you've ever been from any human being, without a spacesuit, even more so.

I was trying to scream, but there wasn't any air in my lungs. I was vomiting blood. At first I assumed it was just the vacuum of space yanking my insides out, but then I realized a ring on the fourth digit of my right hand was streaming a red glowing substance up my hand.

//Extreme anguish detected. Repairing body and adjusting to the effects of red napalm.