Fusion Definition and 834 Threads

This is a pretty interesting theory on the evolution of stars and planetary systems. If you have the bandwidth, watch the movie linked in the paper. Has anybody seen this movie before, and are there alternate interpretations? http://xxx.lanl.gov/ftp/astro-ph/papers/0511/0511379.pdf

I recently came upon a reference to http://www.focusfusion.org, which led me to discover http://www.prometheus2.net and http://www.electronpowersystems.com. What these companies have in common is they propose to generate power using "clean" proton-boron fusion in a pulsed reactor. By pulsed, I...

why does the energy-liberating fusion process ends with the formation of iron and not heavier elements such as uranium?

I'm reading up on star formation and from what I've understood so far, is that protogalactic clouds with density fluctuations cool and then fragment after which, they fragment again into subfragments. Now do the density in these individual subfragments increase the temperature enough to start...

Hi. On a general discussion forum, we were debating wether gold could be obtained from iron; I argued that this is possible, since we are at the moment recreating, in accelerators, even harsher conditions that those necessary for the creation of gold (i.e. those of a supernova core collapse). A...

does an electrostatically confined plasma fed tritium produce energetic e3nough neutrons to create tritium if allowed to irradiate deutrium ?

If we made a custom levitating coil like this: http://www.geocities.com/Area51/Shire/3075/globe.html so that we could suspend a small Iron ball in the levitation coil. Next If we added two small but powerful electromagnets to each opposite equatorial side of the Iron ball so we could play...

In the 1997 5th edition of the Halliday Resnick and Walker fund of Physics this question is asked about colliding two beams of deuterons directly toward each other as well as perhaps colliding deuterons with a steel target. p1116. Why is this method not presently used. Doesn't the ITER do...

a fellow physics major was explaining to me that the latest technique in fusion has to do with creating tritium rings and using them to create another ring, using that ring to create yet a third ring. I'm only second year, so nuclear/particle physics are a bit over my head at this point. I'm...

Having been an avid movie watcher when I was younger, I've developed a sort of assumption that new power sources aren't very welcome in a country driven by oil economics. I understand a lot of the answers will be speculation, but I'd like to hear some opinions. Is it true that fusion is...

This is my first post here, so I'm not entirely sure whether or not this topic warrants a new thread. I've just had a simple idea that I'd like to get some feedback on, from people who have a little more experience in nuclear chemistry than I do. I was wondering if it would be possible to...

http://news.bbc.co.uk/2/hi/science/nature/4629239.stm What is all this nonsense about what 'we' are going to do about new energy sources? What is the most that 'we' are ever going to do--vote for a new 'Energy Czar' to head-up our worldwide Centrally Planned Economy, and then sit back while...

A 58.0 kg ice-skater moving at 6.25 m/s glides to a stop. Assuming the ice is at 0°C and that 53.5 percent of the heat generated by friction is absorbed by the ice, how much ice melts? Should I first calculate the work? I know I need to use Delta U= Q-W...but what is Delta U in this case?

This may seem like a crazy or stupid question. Maybe both. What if there was a way to generate fusion using an element like Hydrogen, and then, miraculously, discover a way to generate fission out of the end result (in this case Hellium)? Could the constant fusion-fission between Hydrogen...

I have been reading about fusors. The articles usually refer to aneutronic reactions as though they are fusion. But are they really? For example, the pB11 reaction yields He, but this is some sort of fission isn't it? I.e. we start of with a heavier isotope and produce lighter ones through...

Hi I was reading an article in the New Scientist, about how fusion can be created in a device no bigger than a coffee cup. It said that an electrically polarised piece of deuterium doped lithium tantilate (don't know if this is the right spelling) placed in a strong electomagnetic field...

All right, you're going to have to really humor me here. As far as I know, the only kind of 'cold' fusion that has ever been demonstrated to work is muon-catalyzed. The reason it isn't viable is that is takes so much energy in the first place to create muons and they have a very short...

Could someone please give me a rough estimate as to what the mass of a 20MW focus fusion reactor might be, please. Seamo

What are projects about nuclear controlled fusion reactor to achieve Q > 1, or possibly obtain Q > 1.

http://physicsweb.org/articles/news/9/7/8/1 Strangely enough, while it looks similar, the experiment is actually different than the earlier Taleyarkhan experiment. Other than that, it is still equally controversial. Stay tune for more development in this saga... Zz.

Question about fusion... What are the problems for development, continuouly power production and economical, in a nuclear fusion reactor and nuclear fusion power plant ?

PLEASE INFORM ME ABOUT THE CONTROLLED FUSION REACTOR. Is possible the continuos use the fusor and plasma focus, using fuel : pB11 or D-He3. Please send me information. Best Regards

French fusion reactor and some other skeptical stuff http://www.sciencedaily.com/upi/index.php?feed=Science&article=UPI-1-20050627-10372700-bc-nukefusion.xml Someone brought this up on a non-scientific site and said it would "provide 2x the worlds energy". Obvious BS so I am wondering if...

I was reading aboot sono-luminescence, and the researcher from llnl, that thought that he had (mistakenly) produced nuclear fusion. With all of the info available that I could find aboot sono-luminescence...it all seems to come down to 'how fascinating, but we don't much aboot it'. With that in...

ok my final exam for chem is tomorrow and i need help badly on this practice problem! here it is: 3. When 9.250 kJ of heat is added to 20.0 g of ice at 0.0 degrees Celcius, what is the final temperature of the water? The heat of fusion for water is 335 J/g. I don't know how on Earth to...

Would common sense dictate that along with providing energy, that each fusion reactor would double as a Helium balloon factory, or would I have to take it upon myself to lobby for the creation of such a facility when the time comes? I would assume that any scientist worth his weight in salt...

Hey, I remember watching a program (Horizon - UK) on an indian scientist who claimed to have caused cold fusion in a lab. The program tried to recreate it (the procedures were not actually the same - but some big name scientists advised them which equipment would be used), and failed. I...

I'm sure most saw the article in today's NY Times on "table top fusion". (For those who haven't...) http://www.nytimes.com/aponline/science/AP-Tabletop-Fusion.html?hp&ex=1114660800&en=6ac101f390e18d4d&ei=5094&partner=homepage And the article does mention that this experiment doesn't do...

http://news.yahoo.com/news?tmpl=story&ncid=753&e=1&u=/ap/20050427/ap_on_sc/tabletop_fusion The article says that the results of this experiment will be published in Thursday's edition of Nature. I'm sure many of you have subscriptions. Would anybody care to recap?

Don't miss this week's Nature! Or, if you don't have access, read here: http://physicsweb.org/articles/news/9/4/15/1 Zz.

Which graduate field would be best if you want to help out in determining a way to harness fusion power at a net result and such? I was told plasma physics would be a good field if i want to go into that sort of research.

In this post on the blog of Harvard string theorist Lubos Motl, he writes: Is it true that the power generated from fusion has increased by 14 orders of magnitude since the seventies, and that they're only a few orders of magnitude away from the goal? If so, does his last sentence suggest there...

If this is probable:http://news.bbc.co.uk/1/hi/sci/tech/4270297.stm then 'Stars in a Jar' would be the ultimate weapon, clean thorough and totally effective. Lets say the evidence existed from the LAN 'newmexico' database, and this mysteriously vanished along with other relevant papers...

Some principal nuclear fusion reactions which have been considered are: 1) D + T -> n + 4He 2) D + 3He -> H + 4He 3) D + D -> H + T / 3He + n 4) T + T -> 4He + 2n 5) T + 3He -> (various products) 6) H + 11B -> 3 (4He) from G. H. Miley, H. Towner and N. Ivich, U. of...

I have no clue how to do this? Which would require more heat, melting 500 g of 0 C ice or turning 500 g of 100 C water into steam?

I Have A Question about FUSION! Please Help! I Have A Question about FUSION! Please Help! the reaction of H and F produces about 500 kj/mol of energy: how much energy is produced by the reaction of 2.0kg of H with 38 kg of F to produce 2 kmol of HF? i know the answer is 5.0x 10 to...

I Have A Question about FUSION! Please Help! I Have A Question about FUSION! Please Help! -------------------------------------------------------------------------------- the reaction of H and F produces about 500 kj/mol of energy: how much energy is produced by the reaction of 2.0kg...

Calculate the energy release for the complete fusion of one mole of deuterium H + H = He + energy i can't do the signs for mass number etc. it quotes the Avogadro constant so that's a clue but help! http://billnye.ytmnd.com

So here it is: What is the energy released when one mole of deterium(?) undergoes complete fusion? Oh, here's the equation: H + H = He i don't know how to post but its 2,1 for both hydrogen isotopes and then 4,2 for the helium duh i know but i don't want confusion. cheers ro><ors...

Could it be possible to one day create fusion bombs that are "clean"(not create radioactive isotopes and other nasty stuff that lingers for years)? The only thing it'd do is create thermal energy and the bast when it goes off?

The first step in the nuke reaction of the sun is p-p reaction p + p = d + e+ + neutrino My question is, if the two protons are coming say from the -x and +x direction, what is the final direction of the products formed in the xyz axis.

Could anyone give me a few examples of endothermic fusion reactions between elements solid at room temperature?

Why can't fusion be accomplished using high energy density electric fields?

In astronomy class i was told that a grouping of hydrogen must reach 10,000,000K for fusion to occur. Without a sun being a certain size, gravity could never be great enough to generate such high temperatures-brown dwarf. So, could you artificially accelerate gravity (as in future plans for...

I had a lab about tin's heat of fusion. I need to know tin' specific heat near fusion point. Can anybody advice any useful resourse? I have two books, in which are opposite data. I suppose that liquid tin must have higher heat capacity as solid ("liquid" molecules have more "freedom"). Help me...

Can anyone here tell me how long it will be (roughly) until hydrogen fusion power stations are producing energy at economic rates? it can't be far off can it? thx

According to this release, bubble fusion (i.e. using ultrasonic waves to induce the rapid collapse of bubbles causing the atoms at the center to fuse), has been convincingly demonstrated in the laboratory. http://www.rpi.edu/web/News/press_releases/2004/lahey.htm#cool At least two movies...

Bubble Fusion - verified?! http://www.rpi.edu/web/News/press_releases/2004/lahey.htm#cool: could this finally be it?

Hello I just recently finshed physics honors on a high school level, but my class because of bad weather, and a tight schedule was unable to go over anything having to deal with automic physics. Could anybody direct me to understanding fussion, and the theories that have been brought up about...

I found this. Is it cranks or for real? http://www.progressiveengineer.com/PEWebBackissues2002/PEWeb%2028%20Jul%2002-2/28editor.htm http://www.focusfusion.org/