tag:blogger.com,1999:blog-3972382144120426476.post2005051048950696639..comments2024-03-28T12:46:54.004-05:00Comments on Every goddamn day: 03/28/24: Expensive but worth itNeil Steinberghttp://www.blogger.com/profile/11468057838260476480noreply@blogger.comBlogger11125tag:blogger.com,1999:blog-3972382144120426476.post-41808011241562484042019-08-06T14:04:31.477-05:002019-08-06T14:04:31.477-05:00I have rethought my comments on the claim that mos...I have rethought my comments on the claim that most stars contain titanium. Stars that formed at the beginning of the universe did consist of mostly hydrogen and helium. Apparently lithium and trace amounts of beryllium would also be present. There would not be titanium because that has to be formed at the end of the life cycle of massive stars like I described. <br /><br />That said, not all stars were formed at the beginning of the universe. Stars are still forming today wherever large clouds of gas and dust are pulled together by gravity. Some of the dust would contain heavier elements including titanium produced by earlier generation stars and then spread into the universe when those stars violently explode in a supernova. Our sun is such a later generation star that has a relatively high metal content. As you sometimes write in other columns, "we regret the error."CrimsonMonolithhttps://www.blogger.com/profile/07759245018840745880noreply@blogger.comtag:blogger.com,1999:blog-3972382144120426476.post-71302272489541475202019-08-06T13:40:04.687-05:002019-08-06T13:40:04.687-05:00It is true that the atomic number of an atom is gi...It is true that the atomic number of an atom is given by the number of protons in one of its atoms. My point is that protons along with neutrons are the components that make up the nucleus of the atom. Protons do not orbit the nucleus because protons along with neutrons are the nucleus. <br /><br />It is an atom's electrons that are said to orbit its nucleus. The protons and neutrons are held together in the nucleus by the strong nuclear force. The negatively charged electrons are attracted to the positively charged nucleus by electromagnetic force. The space taken up by the nucleus is a small fraction of the size of an atom - on the order of 1/100,000. <br /><br />After further investigation, I did find that protons could be said to "move" within the nucleus. Though movement within an atom is really described by quantum physics (not a strong suit of mine) so concepts like a physical position in space or an orbital path are not exactly precise or analogous to our observable world.CrimsonMonolithhttps://www.blogger.com/profile/07759245018840745880noreply@blogger.comtag:blogger.com,1999:blog-3972382144120426476.post-66831860178593029692019-08-06T11:49:31.274-05:002019-08-06T11:49:31.274-05:00Needs to send some of that DMA over to the Cubs.
...Needs to send some of that DMA over to the Cubs.<br /><br />john<br />tatehttps://www.blogger.com/profile/10088632798195131329noreply@blogger.comtag:blogger.com,1999:blog-3972382144120426476.post-26028070160889415452019-08-06T10:46:56.098-05:002019-08-06T10:46:56.098-05:00Most importantly. ..you wont set off airport alarm...Most importantly. ..you wont set off airport alarms and can get MRIs okiehttps://www.blogger.com/profile/05414998405758030304noreply@blogger.comtag:blogger.com,1999:blog-3972382144120426476.post-54826409420091665282019-08-06T09:59:42.944-05:002019-08-06T09:59:42.944-05:00Hey, while we're talking metallurgy, some stai...Hey, while we're talking metallurgy, some stainless steels are magnetic while others are not. You need to be sure which one is implanted in/worn on your body prior to rude happenings in an MRI.heydavehttps://www.blogger.com/profile/15509102502417886790noreply@blogger.comtag:blogger.com,1999:blog-3972382144120426476.post-17952341819670921932019-08-06T09:32:32.923-05:002019-08-06T09:32:32.923-05:00Have two titanium heart valves installed in 1992, ...Have two titanium heart valves installed in 1992, said to last 15 years, 26 years later still strong. You won't be going through that again. And neither will I.Connellhttps://www.blogger.com/profile/18406704590565406630noreply@blogger.comtag:blogger.com,1999:blog-3972382144120426476.post-65848892868595716882019-08-06T09:02:32.309-05:002019-08-06T09:02:32.309-05:00I'm not quite following you. I left out neutro...I'm not quite following you. I left out neutrons because they aren't germane. The definition of the atomic number is the number of protons orbiting the nuclear. I believe the number of neutrons is the same, but didn't feel like sailing off in that direction. <br />Neil Steinberghttps://www.blogger.com/profile/11468057838260476480noreply@blogger.comtag:blogger.com,1999:blog-3972382144120426476.post-88506408951665123332019-08-06T08:44:40.996-05:002019-08-06T08:44:40.996-05:00The SR-71 spy plane, designed to fly over the Sovi...The SR-71 spy plane, designed to fly over the Soviet Union is mostly titanium. Ironically, the best part is that the titanium came from the then Soviet Union, although the Soviets didn't know that. It was Lockheed that figured out how to make the metal useful, as no one had ever made anything large with titanium before that.Clark St.https://www.blogger.com/profile/09634234069783123180noreply@blogger.comtag:blogger.com,1999:blog-3972382144120426476.post-51818833262783707032019-08-06T08:22:14.523-05:002019-08-06T08:22:14.523-05:00A good science class refresher.A good science class refresher.Privatehttps://www.blogger.com/profile/10757585399827295128noreply@blogger.comtag:blogger.com,1999:blog-3972382144120426476.post-35077868452792507512019-08-06T07:47:11.908-05:002019-08-06T07:47:11.908-05:00I is remembering High School chemistry where we we...I is remembering High School chemistry where we were taught electrons orbited the nucleus, the number of protons in the nucleus is the atomic number, and the number of neutrons plus protons was an approximation of the atomic weight. Now if you ever had an MRI, or been present when one was being conducted, you may recall a strict regimen of removing metallic items, to prevent people and machine from being torn asunder. Don't worry, titanium is non magnetic, so as long as your implant is pure titanium and has no impurities, everything will be okay.Berniehttps://www.blogger.com/profile/17157600812959885192noreply@blogger.comtag:blogger.com,1999:blog-3972382144120426476.post-58351341922112780822019-08-06T03:17:13.490-05:002019-08-06T03:17:13.490-05:00Thanks for the interesting article. Seems like tit...Thanks for the interesting article. Seems like titanium is some amazing stuff with lots of interesting applications. A couple science notes for you: <br /><br />Protons along with neutrons actually make up the nucleus of an atom. It is electrons that orbit the nucleus. Protons and electrons have equal but opposite charges and in a neutral atom the number of electrons equals the number of protons. <br /><br />It's not clear to me whether you are claiming that titanium is found in most stars in the night sky, but as far as I know such a claim would be inaccurate. For most a star's life cycle, it fuses hydrogen into helium. For stars with the lowest mass that's it. For stars of mass similar to our sun, they will eventually go on to fuse helium into carbon and then oxygen before they expire. Massive stars go on to fuse carbon into heavier elements including titanium and up to iron (atomic number 26). Compared to how long it takes to fuse the hydrogen into helium, the time span where titanium and ultimately iron are fused is over in the blink of an eye. Elements heavier than iron are only formed by super nova. <br /><br />The upshot is that while there is titanium in some stars, it would only be found in massive stars at the very end of their life. If this subject is of further interest to you, there is an excellent YouTube series called Crash Course Astronomy that explains it all and more in a straightforward manner for the layman. Episode 31 on High Mass Stars is particularly pertinent to the stellar fusion of elements. CrimsonMonolithhttps://www.blogger.com/profile/07759245018840745880noreply@blogger.com