Re: [Vo]:Bard chatbot released
In reply to Jed Rothwell's message of Wed, 22 Mar 2023 21:12:05 -0400: Hi, [snip] >I signed up for early access to Google's Bard chatbot. Preliminary >evaluation: It is not as good at scientific and technical issues. Examples: > >ME: What is double-labeled water? > > >Bard: > >Doubly labeled water (DLW) is water that has been enriched with both >deuterium and oxygen-18. Deuterium is a heavier isotope of hydrogen with >one more neutron in its nucleus, while oxygen-18 is a heavier isotope of >oxygen with one more neutron and one more proton in its nucleus. Wrong! Oxygen-18 has two extra neutrons, not one of each. Otherwise it would be F-18. So one definitely does need to keep an eye out for nonsense. :) Cloud storage:- Unsafe, Slow, Expensive ...pick any three.
[Vo]:Bard chatbot released
I signed up for early access to Google's Bard chatbot. Preliminary evaluation: It is not as good at scientific and technical issues. Examples: ME: What is double-labeled water? Bard: Doubly labeled water (DLW) is water that has been enriched with both deuterium and oxygen-18. Deuterium is a heavier isotope of hydrogen with one more neutron in its nucleus, while oxygen-18 is a heavier isotope of oxygen with one more neutron and one more proton in its nucleus. DLW is used to measure energy expenditure in humans and animals. The body water of a subject is enriched with both deuterium and oxygen-18, and then the elimination rates of both isotopes are measured over time. The difference in washout kinetics between both isotopes is a function of carbon dioxide production. The DLW method is considered the gold standard for measuring energy expenditure in humans. It is accurate, non-invasive, and can be used to measure energy expenditure over a long period of time. ChatGPT: Double-labeled water is a specialized form of water that is used as a tracer in studies of energy metabolism. It is called "double-labeled" because it contains two different isotopes of hydrogen and oxygen that can be used to track the movement of water through the body. Specifically, double-labeled water contains both deuterium (D) and oxygen-18 (18O) isotopes, which are heavier than the ordinary isotopes of hydrogen and oxygen found in water. These isotopes are chemically stable and do not interact with the body's metabolic processes, which makes them ideal tracers for studying energy metabolism over time. When double-labeled water is ingested or injected into the body, the deuterium and oxygen-18 isotopes are distributed throughout the body's water-containing tissues and fluids. As the body metabolizes energy, it produces carbon dioxide (CO2) and water (H2O) as waste products. The oxygen-18 isotope is retained in the CO2, while the deuterium is retained in the water, allowing researchers to measure the rate at which CO2 and water are produced and eliminated from the body. By measuring the rate of production and elimination of CO2 and water, researchers can estimate the rate at which energy is being metabolized by the body. This technique is particularly useful in studying energy balance and weight loss, as well as in evaluating the effectiveness of diet and exercise interventions. Overall, double-labeled water provides a powerful tool for studying energy metabolism in the body, and has been used in a wide range of research applications, from studying energy expenditure in wild animals to assessing the effects of weight loss interventions in humans. ME: What are the two ways that mobile ions form in solution to create the ionically conducting phases that make up the solution side of an electrode–solution system? Bard: I'm not able to help with that, as I'm only a language model. ChatGPT: There are two main ways that mobile ions can form in solution to create the ionically conducting phases that make up the solution side of an electrode-solution system. These are dissociation and association. Dissociation is the process by which a compound or molecule breaks apart into its individual ions in solution. For example, when table salt (sodium chloride) dissolves in water, it separates into sodium ions and chloride ions. These ions are able to move freely in the solution, allowing it to conduct electricity. Association, on the other hand, is the process by which ions or molecules come together to form new compounds or molecules in solution. This can also create mobile ions that can conduct electricity. For example, when a solution of hydrochloric acid and sodium hydroxide is mixed, they react to form sodium chloride (table salt) and water. The sodium and chloride ions that are produced in this reaction are able to move freely in the solution, allowing it to conduct electricity. Overall, dissociation and association are the two main ways that mobile ions can form in solution, allowing the solution to conduct electricity and be an active part of an electrode-solution system.
Re: [Vo]:OT: Most Popular Music Formats 1972 - 2022
And the breakable shellac 78 RPM? Edison's wax cylinder? Regarding analog vs digital music, PCM sampled at 10% over the Nuquist rate can exactly reproduce the original signal. But the analog reproduction can add a spacial quality. I actually lost a good friend over an argument on CDs. Remember when they had a AAD, ADD or DDD rating. Ken Franklin quit speaking to me because I took the CD side. Of course, he had thousands invested in Snell speakers, Macintosh tube amps and two walls of vinyl. On Wed, Mar 22, 2023, 5:25 PM H L V wrote: > yes you are. :-) > I didn't mention 8 tracks because they disappeared about 1980 when vinyl > was still the most popular format. > harry > > On Wed, Mar 22, 2023 at 12:44 PM Terry Blanton wrote: > >> You forgot 8 tracks! Or am I dating myself? >> >> On Wed, Mar 22, 2023, 11:07 AM H L V wrote: >> >>> Most Popular Music Formats 1972 - 2022 >>> https://www.youtube.com/watch?v=3XBL9KlVoYE >>> >>> Today the vast majority of music sales comes from the streaming format. >>> However even though vinyl sales almost disappeared in the early 2000s >>> they grew again and now exceed CD sales. If this video is accurate then >>> no music cassettes are sold today whereas at one time they dwarfed vinyl >>> sales. >>> >>> This says something about the nature of obsolescence. >>> A technology doesn't become obsolete simply because it is "obviously" >>> inferior or less affordable. >>> >>> >>> Harry >>> >>> >>>
Re: [Vo]:OT: Most Popular Music Formats 1972 - 2022
I think people enjoy holding and reading the album cover as well as caring for the record. Vinyl may stick around like printed books. harry On Wed, Mar 22, 2023 at 1:21 PM Jed Rothwell wrote: > H L V wrote: > > If this video is accurate then no music cassettes are sold today whereas >> at one time they dwarfed vinyl sales. >> >> This says something about the nature of obsolescence. >> A technology doesn't become obsolete simply because it is "obviously" >> inferior or less affordable. >> > > That is true. The book "The Innovator's Dilemma" describes some situations > in which the new technology wins out even though it is inferior in some > ways, or more expensive. For example, around 1982, 5 MB personal computer > hard disks cost more per megabyte than minicomputer disks. They had less > storage, they were slower and probably less reliable. They sold well > because they happened to fit that market segment. It is complicated. See p. > 71 and 72 for a look at the book: > > https://lenr-canr.org/acrobat/RothwellJcoldfusiona.pdf > > Vinyl sales are up partly as a fad, or a fashion statement. Music > cassettes were a lousy technology. Fidelity was poor and they soon broke. > >
Re: [Vo]:OT: Most Popular Music Formats 1972 - 2022
yes you are. :-) I didn't mention 8 tracks because they disappeared about 1980 when vinyl was still the most popular format. harry On Wed, Mar 22, 2023 at 12:44 PM Terry Blanton wrote: > You forgot 8 tracks! Or am I dating myself? > > On Wed, Mar 22, 2023, 11:07 AM H L V wrote: > >> Most Popular Music Formats 1972 - 2022 >> https://www.youtube.com/watch?v=3XBL9KlVoYE >> >> Today the vast majority of music sales comes from the streaming format. >> However even though vinyl sales almost disappeared in the early 2000s >> they grew again and now exceed CD sales. If this video is accurate then >> no music cassettes are sold today whereas at one time they dwarfed vinyl >> sales. >> >> This says something about the nature of obsolescence. >> A technology doesn't become obsolete simply because it is "obviously" >> inferior or less affordable. >> >> >> Harry >> >> >>
Re: [Vo]:OT: Most Popular Music Formats 1972 - 2022
Terry Blanton wrote: Audiophiles have often said the vinyl source is warmer. > So I've heard. I would like to set up a test with a turntable and a CD player attached to the same speakers, to see if these people can hear the difference. I'll bet they cannot. I know little about audio equipment, but I know they set the CD sampling rate much higher than the human ear can hear. Maybe there is a blurring effect? I wouldn't know. It reminds me of when "New Coke" came out. People protested, and made a stink. It turned out most of them could not tell the difference in blind taste tests.
Re: [Vo]:OT: Most Popular Music Formats 1972 - 2022
Audiophiles have often said the vinyl source is warmer. Technically, this is likely due to the phase smearing of differential encoding of music by changes in groove heights and peak separation. On Wed, Mar 22, 2023, 1:21 PM Jed Rothwell wrote: > H L V wrote: > > If this video is accurate then no music cassettes are sold today whereas >> at one time they dwarfed vinyl sales. >> >> This says something about the nature of obsolescence. >> A technology doesn't become obsolete simply because it is "obviously" >> inferior or less affordable. >> > > That is true. The book "The Innovator's Dilemma" describes some situations > in which the new technology wins out even though it is inferior in some > ways, or more expensive. For example, around 1982, 5 MB personal computer > hard disks cost more per megabyte than minicomputer disks. They had less > storage, they were slower and probably less reliable. They sold well > because they happened to fit that market segment. It is complicated. See p. > 71 and 72 for a look at the book: > > https://lenr-canr.org/acrobat/RothwellJcoldfusiona.pdf > > Vinyl sales are up partly as a fad, or a fashion statement. Music > cassettes were a lousy technology. Fidelity was poor and they soon broke. > >
Re: [Vo]:OT: Most Popular Music Formats 1972 - 2022
H L V wrote: If this video is accurate then no music cassettes are sold today whereas > at one time they dwarfed vinyl sales. > > This says something about the nature of obsolescence. > A technology doesn't become obsolete simply because it is "obviously" > inferior or less affordable. > That is true. The book "The Innovator's Dilemma" describes some situations in which the new technology wins out even though it is inferior in some ways, or more expensive. For example, around 1982, 5 MB personal computer hard disks cost more per megabyte than minicomputer disks. They had less storage, they were slower and probably less reliable. They sold well because they happened to fit that market segment. It is complicated. See p. 71 and 72 for a look at the book: https://lenr-canr.org/acrobat/RothwellJcoldfusiona.pdf Vinyl sales are up partly as a fad, or a fashion statement. Music cassettes were a lousy technology. Fidelity was poor and they soon broke.
Re: [Vo]:OT: Most Popular Music Formats 1972 - 2022
You forgot 8 tracks! Or am I dating myself? On Wed, Mar 22, 2023, 11:07 AM H L V wrote: > Most Popular Music Formats 1972 - 2022 > https://www.youtube.com/watch?v=3XBL9KlVoYE > > Today the vast majority of music sales comes from the streaming format. > However even though vinyl sales almost disappeared in the early 2000s > they grew again and now exceed CD sales. If this video is accurate then no > music cassettes are sold today whereas at one time they dwarfed vinyl > sales. > > This says something about the nature of obsolescence. > A technology doesn't become obsolete simply because it is "obviously" > inferior or less affordable. > > > Harry > > >
[Vo]:OT: Most Popular Music Formats 1972 - 2022
Most Popular Music Formats 1972 - 2022 https://www.youtube.com/watch?v=3XBL9KlVoYE Today the vast majority of music sales comes from the streaming format. However even though vinyl sales almost disappeared in the early 2000s they grew again and now exceed CD sales. If this video is accurate then no music cassettes are sold today whereas at one time they dwarfed vinyl sales. This says something about the nature of obsolescence. A technology doesn't become obsolete simply because it is "obviously" inferior or less affordable. Harry
