Something I have not seen mentioned is a telescopic inspection mirror for viewing in tight spaces. Can come in very useful for seeing obstructed things. Helps if you can read text backwards.
http://www.b3ta.com/links/Lazy_Journalist
- "A small but loyal group of fans are lovingly called "The Zany Ones" - they like to wear hats made from discarded shoes and have a song about a little potato."
What is important is *anonymous* peer review. There needs to be a mechanism for new scientists to question established researchers without lasting detriment to their careers.
On another note, what I thought this article might be about was CiteULike, which is great. Any academics should check it out
transmission electron spectroscopy does not have atomic resolution - the title is misleading. The best a TEM can manage is diffraction patterns from ordered regions.
It is not that impressive at all. If you read the article, they are cooling the superconducting magnets with liquid helium. (Nearly?) every university chemistry department will have an NMR spectrometer with a superconducting magnet doing at the same temperature, and many will have a SQUID going colder. So although it is *one* of the coldest places on earth, it is a fairly routine temperature.
With the buzz on some other sites, it is conceivable that the handset will be free, but the contract is where they make the money.
European mobile phones are sold in a very different way to the US. We will know soon enough.
I find that I like music in a shallow way when I start to listen to it. After repeated hearing, some of it fades in my enjoyment and some grows.
iTunes has let me buy single songs from albums and if after repeated listens I still want to hear it, I buy the album. But I will buy the album on a CD rather than a download.
[quote]The beauty and real joy of free software is that you can chose the interface you like rather than having it forced on you, so you will get the interface you want along with privacy and security.[/quote]
The interface I want is the mac OS. It is (IMHO), the best. I am willing to pay money for it. It saves me time and it makes me happy.
If gnu/linux had anything anywhere near as satisfying for me to use I might use it. But it doesn't.
At least this is true for me. Others have different priorities.
Sometimes choice means paying (free as beer) or giving up perusing the source code (free as in speech) for the better option. I'm willing to pay for the best stuff, either with speech or beer.
I don't know if it would be possible to change the pricing after setting it, but it would seem to be a reasonable compromise to charge $1 until the cost of the $99 was covered, then make it free. This would mean the first 130 or so customers would pay, and if the app was worth downloading, I'm sure there would be enough people willing to subsidise those who are unwilling/unable to pay.
cmd-w closes a window on a mac. Much better than alt-f4 on windows.
Also, having the menubar permanently stuck to the top of the screen makes hitting menus much easier on the mac due to Fitts law.
Overall macs FTW!
Your results may give good heating under your conditions, but are not at the maximum absorbance. Unless you are observing conduction effects in solution, the maximum absorption will occur around 10GHz.
Getting the most rotation on the molecule does not cause the greatest heating. The key factor is the response time of a molecule to rotate. If the field changes too quickly for the dipole to align at all, they do not move and there is no heating effect. If the field changes slowly, the dipoles can stay in the lowest energy state - aligned with the field, and again there is no heating. Heating occurs where the oscillations in the EM field are of the same order of magnitude as the time for the dipoles to align. As such, they exhibit a phase lag where they are not aligned with the field, and consequently heating occurs as they are never in their lowest energy state.
Microwave ovens act as multimode cavities, and the microwave radiation is reflected through the food many times. The centre of a material in a microwave field can be hotter due to radiative losses at the surface. The radiation will not change in frequency as it passes through the sample, and the bulk is heated evenly (assuming penetration depth is large compared to the materials dimesnions).
The key thing is that the power given out by WiFi transmitters is tiny, and the energy of a microwave photon is tiny. Realistically, the UV radiation given out by the sun is much more likely to kill kiddies than the microwave radiation given out by WiFi.
2.45 GHz isn't maximum absorbance
on
How Bad Can Wi-fi Be?
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· Score: 3, Informative
Actually, 2.45 GHz isn't the maximum of the absorbance for microwaves. If it was, all the energy would be dumped at the surface of food, and there would be virtually no penetration. Water absorbs over a broad spectral range, at least in the liquid phase, where quantised rotational bands can be ignored.
And what you say about the different energies of radiation is mostly true, although EM radiation covers a range that includes UV, x-rays and gamma radiation, which are not very good for you.
Two dual cores have been available from Apple for a long time. Currently their cheapest (2GHz, four cores) is at $2,200. They recently brought out their two quad core machines, which can be had for $3997 (3GHz, 8 cores).
So, yes I think the mac is a a reasonably good price/performance comparison.
If you measure your phones worth by a long list of features, then the iphone probably loses. However, the iphone is about being *easy* to use. Why do some phones require you to hit 14 buttons to get to the feature you want? Bad UI design.
The iphone is like the ipod (and IMO) the mac. It has the same power, but is easier to use. I'm willing to pay more for a better tool that will save me time and not frustrate me. Apple is about design and good design costs money.
It has already been established that Comic Sans is bad. It makes it hard to read and hurts everybody.
So frankly, who cares about this small part of Leonardo Chiariglione's argument?
My main point -- that there shouldn't be comic sans on the internet -- is correct.
Slashdot Mirror
Something I have not seen mentioned is a telescopic inspection mirror for viewing in tight spaces. Can come in very useful for seeing obstructed things. Helps if you can read text backwards.
A tested IQ of 151, and you think poor observation is related to intelligence?
http://www.b3ta.com/links/Lazy_Journalist - "A small but loyal group of fans are lovingly called "The Zany Ones" - they like to wear hats made from discarded shoes and have a song about a little potato."
What is important is *anonymous* peer review. There needs to be a mechanism for new scientists to question established researchers without lasting detriment to their careers. On another note, what I thought this article might be about was CiteULike, which is great. Any academics should check it out
Because someone who invents something should get paid for their work, rather than having idiots with no imagination ripping them off.
There are many scientists that are not too keen to change their world view in the face of evidence. It's healthy scepticism.
transmission electron spectroscopy does not have atomic resolution - the title is misleading. The best a TEM can manage is diffraction patterns from ordered regions.
/. story here
It is not that impressive at all. If you read the article, they are cooling the superconducting magnets with liquid helium. (Nearly?) every university chemistry department will have an NMR spectrometer with a superconducting magnet doing at the same temperature, and many will have a SQUID going colder. So although it is *one* of the coldest places on earth, it is a fairly routine temperature.
With the buzz on some other sites, it is conceivable that the handset will be free, but the contract is where they make the money. European mobile phones are sold in a very different way to the US. We will know soon enough.
Seems fairly common, but should be easy enough.
I find that I like music in a shallow way when I start to listen to it. After repeated hearing, some of it fades in my enjoyment and some grows.
iTunes has let me buy single songs from albums and if after repeated listens I still want to hear it, I buy the album. But I will buy the album on a CD rather than a download.
You pays your money, you takes your choice...
[quote]The beauty and real joy of free software is that you can chose the interface you like rather than having it forced on you, so you will get the interface you want along with privacy and security.[/quote]
The interface I want is the mac OS. It is (IMHO), the best. I am willing to pay money for it. It saves me time and it makes me happy.
If gnu/linux had anything anywhere near as satisfying for me to use I might use it. But it doesn't.
At least this is true for me. Others have different priorities.
Sometimes choice means paying (free as beer) or giving up perusing the source code (free as in speech) for the better option. I'm willing to pay for the best stuff, either with speech or beer.
I don't know if it would be possible to change the pricing after setting it, but it would seem to be a reasonable compromise to charge $1 until the cost of the $99 was covered, then make it free. This would mean the first 130 or so customers would pay, and if the app was worth downloading, I'm sure there would be enough people willing to subsidise those who are unwilling/unable to pay.
cmd-w closes a window on a mac. Much better than alt-f4 on windows. Also, having the menubar permanently stuck to the top of the screen makes hitting menus much easier on the mac due to Fitts law. Overall macs FTW!
It still isn't that fast. You are much better off with a decent wired broadband and wireless router.
Article is wrong. Vulcan in the UK is a 1 petawatt laser, which is 3 times more powerful, and has been running since 2004:
http://www.clf.rl.ac.uk/news/CLF_News/vulcanpetawatt.htm
They even have a plaque from the Guinness book of records.
Your results may give good heating under your conditions, but are not at the maximum absorbance. Unless you are observing conduction effects in solution, the maximum absorption will occur around 10GHz.
Getting the most rotation on the molecule does not cause the greatest heating. The key factor is the response time of a molecule to rotate. If the field changes too quickly for the dipole to align at all, they do not move and there is no heating effect. If the field changes slowly, the dipoles can stay in the lowest energy state - aligned with the field, and again there is no heating. Heating occurs where the oscillations in the EM field are of the same order of magnitude as the time for the dipoles to align. As such, they exhibit a phase lag where they are not aligned with the field, and consequently heating occurs as they are never in their lowest energy state.
Microwave ovens act as multimode cavities, and the microwave radiation is reflected through the food many times. The centre of a material in a microwave field can be hotter due to radiative losses at the surface. The radiation will not change in frequency as it passes through the sample, and the bulk is heated evenly (assuming penetration depth is large compared to the materials dimesnions).
The key thing is that the power given out by WiFi transmitters is tiny, and the energy of a microwave photon is tiny. Realistically, the UV radiation given out by the sun is much more likely to kill kiddies than the microwave radiation given out by WiFi.
Actually, 2.45 GHz isn't the maximum of the absorbance for microwaves. If it was, all the energy would be dumped at the surface of food, and there would be virtually no penetration. Water absorbs over a broad spectral range, at least in the liquid phase, where quantised rotational bands can be ignored.
And what you say about the different energies of radiation is mostly true, although EM radiation covers a range that includes UV, x-rays and gamma radiation, which are not very good for you.
Two dual cores have been available from Apple for a long time. Currently their cheapest (2GHz, four cores) is at $2,200. They recently brought out their two quad core machines, which can be had for $3997 (3GHz, 8 cores).
So, yes I think the mac is a a reasonably good price/performance comparison.
If you measure your phones worth by a long list of features, then the iphone probably loses. However, the iphone is about being *easy* to use. Why do some phones require you to hit 14 buttons to get to the feature you want? Bad UI design.
The iphone is like the ipod (and IMO) the mac. It has the same power, but is easier to use. I'm willing to pay more for a better tool that will save me time and not frustrate me. Apple is about design and good design costs money.
It has already been established that Comic Sans is bad. It makes it hard to read and hurts everybody.
So frankly, who cares about this small part of Leonardo Chiariglione's argument?
My main point -- that there shouldn't be comic sans on the internet -- is correct.
quote: "Generally though all the sex is rather retarded or twisted. Jeremy even shags Mark's sister, so I wonder what that's like"
That's tickety-boo!
Elemental chlorine is an acidic gas. If you use a solid to treat a pool, then the material is a chloride compound, and is basic. Isn't chemistry fun?