Did you know.....

[Boerseun]

Did you know that cow farts are one of the leading causes of global warming?

...Sorry 'bout that.

 

Jus' tell the damn farmers to pull our nipples and not our fingers, and all will be well.

[InfiniteNow]

Lol. :beer:

 

Interestingly, Thunderbird's comment was a common miscommunication. It's more that methane has a greater impact on the environment (pound for pound) than other molecules we input. However, since we (and our cows) input relatively little methane to the atmosphere (relative to carbon dioxide, for example) it's somewhat of a stretch to suggest that it's very high on the list of causes for global climate change (as evidenced in the graphic I shared above).

 

 

Now, with that said... Why are farts funny? Are cow farts funnier than human farts, or is it situation specific?

 

Did you know that over 30% of college graduates cannot find Iraq, Iran, or Saudi Arabia on a map? Did you know that education and religious belief are inversely proportional? Did you know that the nearest galaxy, Andromeda, is on a crash course with our own, but that people who actively worry and get anxious about such things are a bit neurotic? :D

[Thunderbird]

Did You Know?

* In the U.S., there are two head of cattle for every five humans. Even more surprising, one cow's rumen houses more bacteria than there are people on Earth!

* Human activities--from energy production to agriculture--produce approximately 60 percent of the world's methane.

* It takes 2.4 kilowatt-hours (kwh) of electricity to burn a 100-watt light bulb for a day. The electrical energy available in one cow's daily poop: 3.0 kwh.

National Science Education Standards

[Ahmabeliever]

I've spent my life setting fish traps of almost all configerations and if the water doesn't flow the fish will not enter. It makes sense if you think about it. A trap with bait with no water flow means anoxic water in the trap. fish avoid anoxic water. a fish might enter before the water turns anoxic but they also avoid closed spaces with no water flow.

 

I catch native trout with a 2 litre bottle, I cut the top third off, invert it, attach with screws. There will be 1/2 dozen 5 - 10 cm fish within half an hour. They swim in, can't get out. No flow through at all. Like I said, depends on the species.

 

Did you know that when a cow laughs milk comes out of it's nose. :)

[Moontanman]

I catch native trout with a 2 litre bottle, I cut the top third off, invert it, attach with screws. There will be 1/2 dozen 5 - 10 cm fish within half an hour. They swim in, can't get out. No flow through at all. Like I said, depends on the species.

 

Did you know that when a cow laughs milk comes out of it's nose. :)

 

Since you've done it I yield. I have honestly tried to use the inverted drink bottle trap many times (because they are cheap and if they stolen it's no big deal) but I have never cought anything of consiquence in one. Maybe the water temps have something to do with it. If I punch holes in the bottle it works but not unless I take the time to punch many holes in the bottle. Natural water here is in the high 80's in the summer, less oxygen so maybe the anoxic water thing is stronger here than in a trout stream. BTW, you can do that in a trout stream? In the mountians where trout live I would be put under the jail for trapping any trout much less under sized ones:eek_big:

[Ahmabeliever]

Very cold water yes. I replenish native populations, it's a good thing for native fish when I'm around.

 

Did you know that when a giraffe gets an erection its neck shrinks?

[Moontanman]

Very cold water yes. I replenish native populations, it's a good thing for native fish when I'm around.

 

Did you know that when a giraffe gets an erection its neck shrinks?

 

I do the same thing:lol: Except in very warm water:) It's very satisfying to bring species back to their native habitats.

 

Hmmm.. I hope it doesn't shrink by much, happens to me all the time, no wait that's the size of my brain not my neck:hihi::)

[Qfwfq]

And I thought it was my hair that got shorter!

 

Did you know that electricity doesn't move through a wire but through a field around the wire?

Did you know that the charge moves through the conducting material?:shrug:

 

For DC, the whole cross section counts in determining resistance by Ohm's formula. At high frequencies current is distributed more at the surface, that's why quality wires for especially high frequencies have a silvered surface.

[Thunderbird]

And I thought it was my hair that got shorter!

 

Did you know that the charge moves through the conducting material?:shrug:

 

For DC, the whole cross section counts in determining resistance by Ohm's formula. At high frequencies current is distributed more at the surface, that's why quality wires for especially high frequencies have a silvered surface.

 

Yepper it do. That's what I read that electrical charge is not the same as "electricity "

 

No I did not know about the silvered surface thingy.:hihi:

[freeztar]

Did you know that this appears as an exaggeration? Cow farts contain methane, which would be the method by which they contributed to the warming trend. Methane is [ce]CH4[/ce]. See below for this chemical (in the 4th entry) and it's attribution to climate change as a forcing component.

 

It's important to note that the graph shows "Stratospheric water vapor from CH4". This is not the same thing as a forcing from CH4. Interestingly, when CH4 reacts with O2, that is when the water vapor is created. The other molecule created is CO2. ;)

 

Here's a nice graph on methane emissions:

Methane - Wikipedia, the free encyclopedia

 

Did you know that wetlands are the largest natural contributors of methane?

[Qfwfq]

That's what I read that electrical charge is not the same as "electricity "

Well it depends on exactly what you mean by that...

 

Did you know, (but I'm already sure you do) that the transported power can be equated to the flux of the Poynting vector through a transverse surface? This must be so, of necessity by classical EM, but it's a bit of a stretch to say therefore that energy flows through there, especially in DC (but it would be too lengthy to discuss here). Whether to further call that the way you do is a quite arbitrary choice...:eek:

 

I remember a discussion of this, back around '80, in letters to the editor of Wireless World and it all began from a question that wasn't distinguishing between the transported and the dissipated power.

[Thunderbird]

Well it depends on exactly what you mean by that...

 

Did you know, (but I'm already sure you do) .

When it comes to this stuff I am a complete novice.:confused:

[Moontanman]

Did you know.... an octopus will not crawl across a barrier made of indoor outdoor carpet?:weather_snowing: