scholarly journals Reaksi Fisi dan Reaksi Fusi dalam Mekanisme Bom Atom dan Senjata Termonuklir

2021 ◽  
Vol 2 (1) ◽  
pp. 16-30
Author(s):  
Endro Tri Susdarwono

Tujuan penelitian ini membahas mengenai reaksi fisi dan fusi pada bom atom dan senjata termonuklir. Penelitian ini adalah penelitian kualitatif, jenis penelitiannya menggunakan studi analitik komprehensif. Bagian paling vital dari ledakan fisi yang terjadi dalam bom atom tak lain adalah material yang berfisi itu sendiri. Ada dua unsur radioaktif yang biasa dipakai, yakni uranium dan plutonium, masing-masing dengan aneka isotopnya. Mulai dari U-232, U-234, U-235, dan U-238 untuk uranium, hingga Pu-238, Pu-239, dan Pu240 untuk plutonium. Elemen pemicu ledak yang dipakai dalam ledakan termonuklir ialah deuterium (D) alias hydrogen berat atau yang juga popular dengan sebutan ‘air berat’ (heavy water). Dari setiap 5000 atom hydrogen, bisa dipastikan satu isotop di antaranya dalam bentuk deuterium. Inti deuterium (deutron) terdiri dari satu proton (p) dan satu neutron (n). saat berpasangan, dua deutron membentuk inti atom helium (He-4) yang relatif stabil. Dalam semua jenis reaksi ini, inti atom berat terbentuk melalui proses fusi. Kata Kunci: bom atom, reaksi fisi, reaksi fusi, senjata termonuklir The purpose of this research is to discuss fission and fusion reactions in atomic bombs and thermonuclear weapons. This research is a qualitative research. This type of research uses a comprehensive analytical study. The most vital part of the fission explosion that occurs in an atomic bomb is none other than the fission material itself. There are two radioactive elements in common use, uranium and plutonium, each with its different isotopes. They range from U-232, U-234, U-235, and U-238 for uranium, to Pu-238, Pu-239, and Pu240 for plutonium. The explosive trigger element used in thermonuclear explosions is deuterium (D) heavy hydrogen or also popularly known as "heavy water" (heavy water). For every 5000 hydrogen atoms, one can be sure of one of them in the form of deuterium. The nucleus of heuterium (deutron) consists of one proton (p) and one neutron (n). When paired, the two deutrons form a relatively stable nucleus of helium (He-4). In all of these types of reactions, heavy atomic nuclei are formed by fusion. Keywords: atomic bombs, fission reactions, fusion reactions, thermonuclear weapons

TEM Journal ◽  
2020 ◽  
pp. 1721-1731
Author(s):  
Andik Asmara ◽  
Ming-Chang Wu

The government in the world through constitution and ministry establish a law to develop and strengthen the economic system; one of the laws regard education and industrialization. The part of education types which is close with industries are vocational schools and universities. Each university is encouraged to enhance collaboration with industry through a lot of effort. However, the crucial component to actuate collaboration in education viewpoint is the provision of the proponent facilities. Qualitative research was conducted through interviews to collect the data, and grounded theory was used to analyze the data. The six months internship, research collaboration on-job training establishes facilitators i.e. a person who facilitates cooperation effectively.


Author(s):  
Endro Tri Susdarwono

The purpose of this study is to discuss the Semar puppet characters who are Indonesian local culture as a wealth of imagination and a source of creativity in the creation of visual communication design works. This research is a qualitative research, the type of research uses a comprehensive analytical study and analytical normative approach. Indonesian local culture needs to be embraced into a wealth of imagination and a source of creativity for the process of creating advertising design works. By following the prevailing customs, upholding morality, and prioritizing local cultural wisdom to be later appointed as inspiration, source of ideas and ideas, as well as software to communicate various commercial, social, or moral messages to the target audience, existence A visual communication design work will accentuate people's lives, in the end it is expected to be able to enlighten the thoughts and feelings of human beings who live and fill their lives according to their respective talents. The mysterious Semar wayang figure is also part of the religious mythological figure loved by the Javanese people in particular. Therefore, Semar is considered to have high value and value in wayang as part of Javanese life. So, of course the character Semar will be interesting to study more carefully and more deeply in terms of philosophy in an effort to unravel the mystery that surrounds him.


Nuncius ◽  
2015 ◽  
Vol 30 (2) ◽  
pp. 320-344 ◽  
Author(s):  
Andrea Candela

At the beginning of the 20th century the collective imagination was fascinated and terrified by the discovery of radium. A scientific imagery sprang up around radioactivity and was disseminated by public lectures and newspaper articles discussing the ambiguous power of this strange substance. It was claimed that radium could be used to treat cholera, typhus and tuberculosis, but at the same time there were warnings that it could be used for military purposes. The media and the scientists themselves employed a rich vocabulary influenced by religion, alchemy and magic. The ambivalent power of radioactive elements exerted a great influence on science fiction novelists. This paper will examine some significant works published in Europe, America and Russia during the first decades of the 20th century and their role in the creation of the complex imagery of radioactivity that seized the public imagination long before the invention of the atomic bomb.


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