Search found 403 matches

by meat.paste
Wed Jul 29, 2015 9:47 pm UTC
Forum: Science
Topic: A million years
Replies: 59
Views: 9151

Re: A million years

Given civilization is only 5-10 thousand years old, and it has been an enormous technical challenge to create a clock that will last 10,000 years , I think we are a long way from building something that will last 100x longer than that. A thermogenic power source that lasts for 1E6 years must have a ...
by meat.paste
Mon Mar 02, 2015 7:50 pm UTC
Forum: Science
Topic: Oxidisers
Replies: 30
Views: 7124

Re: Oxidisers

There are about 10^50 atoms on Earth. I think this would make the total number of combinations of atoms into compounds to be approximately a (metric crapton)^(holy crap, that's a lot!). All of them except 1 would be reduced by something else in the list. A free electron makes an excellent reduction ...
by meat.paste
Mon Feb 02, 2015 7:46 pm UTC
Forum: Science
Topic: Regression of Cooked State into an Uncooked State
Replies: 37
Views: 8672

Re: Regression of Cooked State into an Uncooked State

A little more information on the unboiling of an egg (TL;DR - add a urea-like compound to liquify the initial protein state, then use liquid shear to encourage the proteins to refold into their original form)
by meat.paste
Thu Jan 22, 2015 8:06 pm UTC
Forum: Science
Topic: "connecting" the earth and the moon
Replies: 24
Views: 5962

Re: "connecting" the earth and the moon

The moon moves to a natural geosynchronous orbit (~45 hours long) in about 50 billion years. (http://www.universetoday.com/112450/why-is-the-moon-leaving-us/) So, not going to happen unless we engineer the sun to not go nova (If we're advancing so far above the space elevator concept to build a tunn...
by meat.paste
Sun Jan 11, 2015 6:53 am UTC
Forum: Science
Topic: Why Do We Only Season Cast Iron Pans
Replies: 31
Views: 7154

Re: Why Do We Only Season Cast Iron Pans

Here's some good information on the seasoning process: http://sherylcanter.com/wordpress/2010/01/a-science-based-technique-for-seasoning-cast-iron/ The trick is multiple, very thin coatings of a low smoke point oil to encourage polymerization. The reason to use stainless over iron for cooking genera...
by meat.paste
Mon Nov 03, 2014 6:11 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1442: "Chemistry"
Replies: 63
Views: 21225

Re: 1442: "Chemistry"

As a chemist, this drives me crazy. It's funny AND maddening.
by meat.paste
Tue Feb 04, 2014 6:42 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1321: "Cold"
Replies: 517
Views: 90930

Re: 1321: "Cold"

The globe warms. The globe cools. I stand by the data that states that man's impact on the climate on a global scale is measurable but minimal at best. On more local scales however... yeah, mankind can f*** stuff up and needs to apply some common-sense in self-regulation (common-sense meaning a bal...
by meat.paste
Thu Sep 12, 2013 11:28 pm UTC
Forum: Science
Topic: Pound v. Foot Pound
Replies: 101
Views: 24269

Re: Pound v. Foot Pound

No, sine of radians and sine of degrees are not the same sine functions, because they don't take the same inputs to the same outputs and the derivative of one gives you a velocity (or a velocity component) while the other gives you some other quantity entirely. I'm not seeing the difference. I do a...
by meat.paste
Tue Sep 10, 2013 3:21 pm UTC
Forum: Science
Topic: Pound v. Foot Pound
Replies: 101
Views: 24269

Re: Pound v. Foot Pound

I can see why this thread is full of comment. I want to play :) First off, I do think this is a lot of squawk over the name of something. A rose by any other name, yes? Units are used for consistency, but inter-conversion is always practical. sin(x) is the same whether you use x as degrees or use x*...
by meat.paste
Fri Aug 23, 2013 12:56 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1255: "Columbus"
Replies: 93
Views: 24446

Re: 1255: "Columbus"

dalcde wrote:C'mon, "round" is just a lazy way to say "spherical"1

1Technically speaking, ball-shaped


Really technically speaking, it's an oblate spheroid. With 3 nipples to rain milk down on the turtles holding the planet up. (It's turtles all the way down, you know.)
by meat.paste
Mon May 20, 2013 1:58 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1213: "Combination Vision Test"
Replies: 159
Views: 64689

Re: 1213: "Combination Vision Test"

I don't have any of the stated issues (at least none that were diagnosed), but my particular wetware processor makes out the number 88 (faint and elongated, but there nonetheless)
by meat.paste
Wed Apr 17, 2013 2:47 pm UTC
Forum: What If?
Topic: What-If 0040: "Pressure Cooker"
Replies: 117
Views: 58061

Re: What-If 0040: "Pressure Cooker"

As has been stated, we now have a winner(?) for the worst thing that can happen in a pressure cooker. As far as 30% H2O2 goes, you can buy it in a pool supply store in Texas. No license needed. Knowing some of the nastiness that can be done with this, I was surprised. On the plus side, the elephant ...
by meat.paste
Mon Apr 15, 2013 5:37 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1199: "Silence"
Replies: 107
Views: 18875

Re: 1199: "Silence"

It's just someone playing over the top of As Slow As Possible, as played by The Universe. We're currently 13.8 billion years into it. You can give Beethoven's 9th stretched to 24 hours a whirl. It's up-tempo in comparison I first learned about Cage's work a few weeks ago at a ranger talk at the bot...
by meat.paste
Mon Mar 25, 2013 10:42 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1190: "Time"
Replies: 107233
Views: 50049398

Re: 1190: "Time"

This reminds me of the folks who took Beethoven's 9th symphony and electronically stretched it to 24 hours. It is beautiful and maddening.

http://www.park.nl/digidivi/9bs.pls
by meat.paste
Fri Mar 22, 2013 5:48 pm UTC
Forum: Science
Topic: Sun's Energy Production Per Cubic Meter
Replies: 17
Views: 5877

Re: Sun's Energy Production Per Cubic Meter

I thought the dominant energy producing reaction in the core is the CNO cycle, not p-p fusion. This is why our sun was able to start the fusion process at a low mass (compared with the very first stars that had to exist via p-p fusion, thus didn't stabilize until they were very massive)
by meat.paste
Thu Jan 31, 2013 8:02 pm UTC
Forum: Science
Topic: Suit of armor + Electric shock = ?
Replies: 20
Views: 5840

Re: Suit of armor + Electric shock = ?

Related-ish question... If I wrap my body in aluminum foil before getting hit by a taser, would the high conductivity keep the coil in the taser from firing? My friend was a test subject for a taser firing. I encouraged him to wrap up in foil under his clothing, but he declined. This would indicate ...
by meat.paste
Tue Sep 11, 2012 1:43 pm UTC
Forum: Science
Topic: Liquid Crystal Display with UV
Replies: 8
Views: 5815

Re: Liquid Crystal Display with UV

The liquid crystals typically have UV absorbing moieties like benzene rings, so I think you would need a pretty bright UV source (Xe lamp?) to use the LCD idea. If you have a good monochromatic UV source, you can see if the LCD absorbs by putting something that fluoresces nicely on one side and the ...
by meat.paste
Fri Aug 31, 2012 2:34 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1102: "Fastest-Growing"
Replies: 85
Views: 21048

Re: 1102: "Fastest-Growing"

I do love BHG. The most recent group I've heard claiming "fastest growing religion" was the Church of Latter Day Saints. There are now as many Mormons in the US as Jews!
by meat.paste
Tue Aug 28, 2012 10:37 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1100: "Vows"
Replies: 53
Views: 18943

Re: 1100:" Vows"

It seems horseball has been forgotten by history. Not enough brain and spinal injuries, I imagine. Tell that to the polo enthusiasts. But it seems that in water polo, they don't use the horses. Sad. :lol: Water polo WITH HORSES!! I'd watch that, although it would be more civilized than regular wate...
by meat.paste
Mon Aug 20, 2012 5:32 pm UTC
Forum: Science
Topic: Question about superheating water
Replies: 12
Views: 3689

Re: Question about superheating water

The short answer is, yes you are superheating the water. Adding nucleation sites will diminish the response, reheating a cup of water will make it worse, glass cups are a great superheater of water. The links below have further information. Be careful when getting the cup out of the microwave becaus...
by meat.paste
Mon Aug 20, 2012 4:16 am UTC
Forum: Science
Topic: Worst thing you've seen in a lab
Replies: 256
Views: 232114

Re: Worst thing you've seen in a lab

PM 2Ring wrote:Considering that lemon juice has a pH around 2.5 you could safely drink HCl at a much higher concentration than 0.0001M; I know I have. :)


I know I've certainly had higher concentrations of HCl exiting my stomach through my mouth. I will NEVER drink gin again :(
by meat.paste
Mon Apr 30, 2012 4:17 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1049: "Bookshelf"
Replies: 867
Views: 130623

Re: 1049: "Bookshelf"

Save us, industrialists! We're too stupid to live!
by meat.paste
Wed Apr 18, 2012 11:52 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1044: “Romney Quiz”
Replies: 213
Views: 58799

Re: 1044: “Romney Quiz”

As a voting US citizen who actually thinks about which candidate to vote for, I can assure the foreign readers of this comic that our politics are confusing to the US citizens too. :)
by meat.paste
Fri Apr 13, 2012 4:13 am UTC
Forum: Science
Topic: Worst thing you've seen in a lab
Replies: 256
Views: 232114

Re: Worst thing you've seen in a lab

ikrase wrote:I once made red fuming nitric acid.


Wow.

Did you have a reason for it or was it just for fun? Did you nitrate anything interesting?
by meat.paste
Wed Apr 11, 2012 4:36 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1041: "Whites of Their Eyes"
Replies: 68
Views: 20172

Re: 1041: "Whites of Their Eyes"

Ah yes. Romantic War Porn. His lips trembled longingly as the nerve gas began to effect him. He thrust the atropine pen deep within himself over and over again and felt relief as the burning fluid was released within him, slowly allowing his mind to regain itself after a long bout of painful, contra...
by meat.paste
Wed Jan 25, 2012 5:29 am UTC
Forum: Science
Topic: RPM vs Gas Consumption
Replies: 44
Views: 16064

Re: RPM vs Gas Consumption

@JBJ - Thank you for that very clear post. I certainly understand the relationship between RPM, power and fuel efficiency better. To answer the original poster, you could experimentally determine the answer by taking the wind resistance out of the equation. Simply put the car on a treadmill that run...
by meat.paste
Wed Jan 25, 2012 5:20 am UTC
Forum: Science
Topic: Questions about Sulfur Hexafluoride
Replies: 30
Views: 5587

Re: Questions about Sulfur Hexafluoride

SF6 has a molecular weight of (32+6*19) 146 g/mol, while normal air is about 29 g/mol. This makes the diffusion of SF6 about 2.25 times less than that of air. They are both gasses and the breathing process is turbulent. I doubt that there would be a significant stagnant fraction of nearly pure SF6 p...
by meat.paste
Fri Jan 20, 2012 5:13 am UTC
Forum: Science
Topic: Questions about Sulfur Hexafluoride
Replies: 30
Views: 5587

Re: Questions about Sulfur Hexafluoride

I believe SF6 usually has some SF5 impurities in it. sulfur pentaflouride is not good at all for you. Here is a video of someone breathing in SF6 for one breath. That level would be fine, but constant over a day may be risky. I don't know if there is a reaction in the tank or in the body that might ...
by meat.paste
Wed Jan 18, 2012 5:50 am UTC
Forum: Science
Topic: Favorite home experiments
Replies: 590
Views: 475106

Re: Favorite home experiments

I forgot to mention this one. Take an empty, clean paint can (available at the local hardware store). Drill a small hole in the bottom and a small home in the lid. Put the lid on the can and flush the interior volume of the can with methane until it is basically 100% methane (important: The concentr...
by meat.paste
Wed Jan 18, 2012 5:38 am UTC
Forum: Science
Topic: Favorite home experiments
Replies: 590
Views: 475106

Re: Favorite home experiments

You can try gluing a bunch of little square disco ball mirrors to an old satellite dish. It makes a damn effective solar concentrator. There are several videos about this.
by meat.paste
Mon Jan 09, 2012 5:21 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1001: "AAAAAA"
Replies: 92
Views: 22731

Re: 1001: "AAAAAA"

I really liked this one. The juxtaposition of the involved parties' naivete in how this was supposed to work with the intelligence of said same parties, evidenced by the technical prowess to put together a high speed bed rotation device, which would have to have some reasonable power behind it to ha...
by meat.paste
Wed Oct 26, 2011 3:26 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0969: "Delta-P"
Replies: 181
Views: 52978

Re: 0969: "Delta-P"

This one went up on my wall. I've already had two people laugh out loud. Very nice comic.
by meat.paste
Thu Aug 04, 2011 2:56 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0933: "Tattoo"
Replies: 156
Views: 43209

Re: 0933: "Tattoo"

In this thread, I've seen the radiation therapy described as gamma rays, protons, and electrons. I do not see how they are the same thing. If I did the math right, the electrons in the beam are at 7.6 MeV., A beam of protons moving at that same speed would have an energy of 13,900 MeV. I presume the...
by meat.paste
Fri Jul 29, 2011 6:57 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0931: "Lanes"
Replies: 253
Views: 67765

Re: 0931: "Lanes"

We all die. A goodly chunk of us will die from cancer (25% of men and 15% of women). It's a shitty way to go.

My $0.02, don't dwell on the off-ramp. Enjoy the drive instead.
by meat.paste
Wed Jul 27, 2011 4:23 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0930: "Days of the Week"
Replies: 126
Views: 28651

Re: 0930: "Days of the Week"

I wonder if Tuesday being a bad day to get laid is related to the spike in menses onset on Sunday :)
Perhaps the correlation should be going to church causes bleeding.
by meat.paste
Sat Jun 25, 2011 5:17 am UTC
Forum: Science
Topic: This seems impossible.
Replies: 33
Views: 6582

Re: This seems impossible.

I recall some really clever experiments where single photons would pass through a double slit. An interference pattern would disappear if there was a way to determine which slit the photon went through, even if the observation was not made. Or something like that (My brain is operating on very littl...
by meat.paste
Sat Jun 25, 2011 4:59 am UTC
Forum: Science
Topic: Help Request - Molding Glass Over Metal
Replies: 15
Views: 2657

Re: Help Request - Molding Glass Over Metal

Thanks fellow forumites. For the application I needed, I went with a traditional overmolding approach with metal inserts into plastic. My plastic just happens to be >700C and made of glass.
by meat.paste
Mon Jun 06, 2011 6:14 pm UTC
Forum: Science
Topic: Help Request - Molding Glass Over Metal
Replies: 15
Views: 2657

Re: Help Request - Molding Glass Over Metal

Thanks for the suggestion on the enamel. It won't work directly for what I need, but I'll see if I can find a way to use the technology. I need to have the metal in the glass but not completely covered in glass (electrical contact is needed, but the pieces of metal have to be isolated from each othe...
by meat.paste
Mon Jun 06, 2011 1:07 pm UTC
Forum: Science
Topic: Help Request - Molding Glass Over Metal
Replies: 15
Views: 2657

Help Request - Molding Glass Over Metal

I have a project for work and I'm looking for a reliable way to mold glass over metal. The glass needs to reliably and precisely cover part of the metal. I have been searching for a few days and have discovered that glass makers use a completely different set of terminology than I do. I have also le...
by meat.paste
Tue May 31, 2011 7:57 pm UTC
Forum: Science
Topic: Why do matter and anti-matter annihilate in the first place?
Replies: 38
Views: 7036

Re: Why do matter and anti-matter annihilate in the first pl

If you do CPT to a thing, you don't get anti-thing, you have now come all the way back to thing. an antiparticle is either CP, or, alternatively, T. Oops. It has been a while, and you are correct. Reformulation: The annihilation event is simply a single particle switching from a forward to a backwa...

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