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Ethics is knowing the difference between what you have a right to do and what is right to do.
Potter Stewart
Tuesday, September 28, 2010
Monday, September 27, 2010
Addicts lessons:1
So, what comes in mind when we mention the word "NUCLEAR"......my guess would be the bombs right? Why would'nt you think of that? Its symbolic.. The reason I brought this up is because of something that I've learned in class yesterday...Oh! btw, sorry that I went MIA for the past one week! So much for the commotions! My previous post nampak je macam semangat...last-last habuk pun takda sampai la ni! Ok...back to where we were....In class, we were discussing about reactivity. Basically reactivity is the functional change in neutron population per generation. In layman's term, reactivity is the rate where a chemical substance tends to undergo a chemical reaction. Why is this so important then??
Well, recognize this..... Uranium?? What happens if it goes under reactivity?But first,what is uranium?? In nature, uranium is found as uranium-238(99.284%), uranium-235 (0.711%) and a very small amount of uranium (0.0058%).The rest my fellow addicts, just googled it.........or browse through the ever wonderful wikipedia...
What interests me the most about yesterday's lecture is how reactivity influences the activity of neutrons of a reactor fuel....Oh, the reactor's fuel are uranium.....So, by manipulating the level of reactivity of the fuel, the Fatman and the Little Boy were born!!!! Ahhhhh......here is where I got very interested!
So, introducing the FATMAN!
And the lightweight LITTLE BOY!!
So, lets learn someting about this two bombs.....
Fat Man and Little Boy were very different bomb designs. Fat Man was an implosion device using plutonium. Little Boy was a simple gun design using enriched uranium (that is, the fraction of highly fissile U-235 compared to less fissile U-238 was increased compared to naturally occuring uranium.) Basically, a slug of uranium was fired into a target at the other end of the bomb to assemble the critical mass.
The designers were confident that the gun design for the uranium bomb would work. Also, there wasn't enough enriched U for a second bomb so a test of that one would be a waste. Tests with Pu determined that it was too reactive for the gun mechanism to work (the device would go off prematurely before developing its full yield, a so-called fizzle). So the implosion mechanism was the way to go. This, however, was not a sure thing. Since Pu was more plentiful, it was clear that the implosion mechanism would have to work. Before dropping an implosion-based weapon, they wanted to make sure it would work. Thus the Trinity test.
The shapes of the bombs give away the mechanism. Little Boy was long and narrow along shape of the gun. Fat Man was... rotund.
Untuk disimpulkan dan dijadikan cerita, Fatman was created sebab plutonium 239 has such a fast spontaneous fission rate..This is covered yesterday by my super knowledgeble lecturer in the effect of delayed and prompt neutron on power changes..So, Seth Neddermeyer created an idea to compress a small sphere of plutonium quickly to a required density that will make the plutonim go critical and produce a nuclear explosion So, the Fatman is an improved version of the Little boy because the little boy is too slow to work with such isotope..... In the end, hail the technology and discovery......not to what it had done to Hiroshima and Nagasaki.....
Hrrrmmmmm..........now you know the differences between the Fatman and Little boy....How bout the differences between a nuclear bomb and a nuclear reactor???? Stay tuned! Thx for reading addicts!!!!
Well, recognize this..... Uranium?? What happens if it goes under reactivity?But first,what is uranium?? In nature, uranium is found as uranium-238(99.284%), uranium-235 (0.711%) and a very small amount of uranium (0.0058%).The rest my fellow addicts, just googled it.........or browse through the ever wonderful wikipedia...
What interests me the most about yesterday's lecture is how reactivity influences the activity of neutrons of a reactor fuel....Oh, the reactor's fuel are uranium.....So, by manipulating the level of reactivity of the fuel, the Fatman and the Little Boy were born!!!! Ahhhhh......here is where I got very interested!
So, introducing the FATMAN!
hello everyone! Im cute but I'll bite! |
Im small but Im mean!...I mean it... |
Fat Man and Little Boy were very different bomb designs. Fat Man was an implosion device using plutonium. Little Boy was a simple gun design using enriched uranium (that is, the fraction of highly fissile U-235 compared to less fissile U-238 was increased compared to naturally occuring uranium.) Basically, a slug of uranium was fired into a target at the other end of the bomb to assemble the critical mass.
The designers were confident that the gun design for the uranium bomb would work. Also, there wasn't enough enriched U for a second bomb so a test of that one would be a waste. Tests with Pu determined that it was too reactive for the gun mechanism to work (the device would go off prematurely before developing its full yield, a so-called fizzle). So the implosion mechanism was the way to go. This, however, was not a sure thing. Since Pu was more plentiful, it was clear that the implosion mechanism would have to work. Before dropping an implosion-based weapon, they wanted to make sure it would work. Thus the Trinity test.
i may look like a mushroom but i dont taste like one! |
The shapes of the bombs give away the mechanism. Little Boy was long and narrow along shape of the gun. Fat Man was... rotund.
Untuk disimpulkan dan dijadikan cerita, Fatman was created sebab plutonium 239 has such a fast spontaneous fission rate..This is covered yesterday by my super knowledgeble lecturer in the effect of delayed and prompt neutron on power changes..So, Seth Neddermeyer created an idea to compress a small sphere of plutonium quickly to a required density that will make the plutonim go critical and produce a nuclear explosion So, the Fatman is an improved version of the Little boy because the little boy is too slow to work with such isotope..... In the end, hail the technology and discovery......not to what it had done to Hiroshima and Nagasaki.....
Hrrrmmmmm..........now you know the differences between the Fatman and Little boy....How bout the differences between a nuclear bomb and a nuclear reactor???? Stay tuned! Thx for reading addicts!!!!
Monday, September 20, 2010
NUCLEAR NEWSFLASH!!!!
Oh bummer! Just got back from class and was just about to post something just like i promised in my previous post....but.... i just cant open certain files that I need to refer to... Any how, as a compensation; how about me leaving you addicts with the latest news on the nuclear world.....I was "googling" around the web and I came across this:
Hong Kong to replace coal with nuclear?
Whoo....Hong Kong is climbing up the ladder? Malaysia......found your ladder yet??
Hong Kong to replace coal with nuclear?
Whoo....Hong Kong is climbing up the ladder? Malaysia......found your ladder yet??
Sunday, September 19, 2010
ATTENTION! NUCLEAR ADDICTS!
From today onwards, i will try to bring my blog to a new direction. Updates will be done daily and i will cover different topics regarding nuclear. So, what should I brag about today? Here's the plan!
- Monday- I will share with you addicts what I have gained in my lecture class today.. Since the lecture is at 6pm, posts and updates will be done thereafter.
- Tuesday-Again, the same thing as Monday as I will be attending another lecture on this day. Yup, 6pm onwards.
- Wednesday- General topics regarding nuclear. Mainly facts that you might not know or do know(if you are one of the 150 nuclear aristocrates in Malaysia); about nuclear.
- Thursday- This will be the "Nuclear for Malaysia" drive day! I will try my very best to convince my readers on why shoud we go "NUCLEAR".
- Friday- I will summarize what I have wrote from Monday till Thursday. I might even post videos and share with you some infos of my visit to Nuclear Malaysia
Saturday, September 18, 2010
DEGREE IN NUCLEAR ENGINEERING IN MALAYSIA
I was just wondering whether there is any university in Malaysia that offers courses that are related to the nuclear field...Last time i checked, we have 150 scientists, 50 of whom have PhDs in nuclear science and energy, while others at least has a Masters degree. Would that be enough? Are we ready??
NUCLEAR MYTHBUSTER!!!
Hello goodfellas! Just got back from several Hari Raya open houses and went straight to my laptop to update my facebook account. Tetiba je, i stumbled upon a comment by a good friend of mine dan commentnya sangatlah tegas dan garang! Rey!Kenapa garang sangat??haha....ok Dr.Rey, this post goes to you! It seems that you are very concern about the vulnerability of a nuclear power plant... The word "nuclear" alone dah sounds menakutkan....betul tak?? Haaaaah....here is where i play my part! The Nuclear Mythbuster!
Let me help you debunk some myths.....
- Malaysia has enough energy in reserve- Yes we do...but just for now..the remaining capacity will not be sufficient after 2015.
- Solar as replacement- Well, the two main things in generating power is RELIABILITY and CONSISTENCY. Renewable energy such as solar and wind do not. Looking at the current trend, solar will not be enough nor capable.
- Energy resources and uranium- This is a no brainer... Minyak kita dah nak abis!!! Uranium is abundant...enough said..Ooohh...btw, do you know that our coals are 100% imported??
- Nuclear power plant can become a bomb- Rileks brader.... a nuclear bomb explodes like a bomb...not a nuclear power plant....Why?? The fuel is spaced well apart and reactions can be automatically controlled..
- There an be another Chernobyl- Yesterday's technology is not tomorrow right?? Consider this...a 1983 Proton Saga and the current Saga BML...which one is equipped with an airbag??
- Nuclear plant is dangerous- Hah! The on-going OPS Sikap sees more fatalities than nuclear power plants! Based on my research, fatalities(1970-1992) occur in a nuclear power plant barely hit 50 people. Guess how many fatalities occur in coal mines in the same period of time....Tadaaa! 6400 people!! So, do your math and tell me which one is safer...
- Exposure to high radiation- Bullocks! radiation exposure is insignificant! Nuclear power plant's radiation= 0.002 mSv.....your TV emits 0.01 mSv of radiation(2hrs of watching)!!
- Too much waste- Production of all the electricity consumed in a four‐bedroom house for 70 years leaves about one teacup of high‐level waste.That is very minimal.
- No solution for the waste produced- Spent fuel can be recycled...yup..just like your "surat khabar lama!" and your "tilam lama tukar baru!!"
- Expensive- My dear Rey, believe it or not...solar costs the most......and the most to generate electricity...that is US$25++/MWhr.....nuclear sits around US$5/MWhr..
- Much fuel are needed- Ok...picture this....a 30 grams of a nuclear fuel pellet produces the same energy as 3 tonnes of coals...paint the picture in your head...ain't it beautiful....How big is a 30g of a pellet??? Here is a picture...
30g fuel pellet
I think these should be enough for today...ill add more nanti eh..... post kalau panjang sangat jadik semak....i nak blog yang jambu.....betul tak nazri??
Friday, September 17, 2010
Congratulations Iran!Iran boleh! Malaysia pun boleh!
Persian power! Finally, the Iranians can mingle around with the big boys ;marking a milestone in Tehran's development of what it insists is a peaceful nuclear energy program.
Heck.....what concerns me is the persistence of the Iranians to continue their uranium enrichment program despite warnings from the US government.. Well, for all of you that might not know, uranium enrichment is one of two paths to a nuclear bomb. Iran could potentially go the plutonium route with its Bushehr reactor..
With Ahmadinejad at helm, dude......you might want to have your fingers crossed!
But for now, lets just marvel at the 'magnifico' power plant in Bushehr!oooo laaa laaa...
the symbol of Iranians resistance and patience
the scaled model of the power plant
yeahhhh.......smile like you mean it.
Selamat Hari Raya my fellow nuclear addicts!
Testing...testing...1..2..3....
First post everybody. First and foremost, Selamat Hari Raya and welcome back to school everyone! Oh well, Im having a hard time with blogspot's whereabouts. Everything seems so confusing.
No guessing on what this blog is all about mates! It is about nuclear and nuclear and nuclear. Sounds a bit tad boring but i will ensure you that I will keep you entertained! Insyallah...
1Malaysia 1Nuclear Crews
1Malaysia 1Nuclear Crews
Mohamed Effei Ramli |
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