Scientists are always trying to innovate to improve the world, but unfortunately there are people who use it for something bad to himself. Below is a list of 10 important discoveries and intended for good but it ended in disaster at the expense of the environment and human life.
1. Zyklon B
Fritz Haber was Jewish scientist who won the Nobel prize for creating a low nitrogen fertilizer and chemical weapons for Germany in World War I. Insecticides are used for the fumigation of an invention in the stores of rice which is responsible for the deaths of 1.2 million people. Zyklon B was a method of execution in gas chambers during combustion
2. Agent Orange
2. Agent Orange
Arthur Galston makes a chemical that can accelerate the growth of soybeans and make it be grown in areas with short seasons. Unfortunately, at high concentrations it would defoliate soybeans and function of this material is then replaced by a herbicide (weed eradication) Galston despite concerns about its effects on humans. It was supplied to the U.S. government in orange striped barrels and 77 million liters of Agent Orange sprayed in Vietnam that caused 400,000 deaths and disabilities by 500,000 birth defects.
3. Gatling gun
Richard Jordan Gatling Gatling Gun create after he noticed the majority of American deaths due to disease rather than a shot. In 1877, he wrote: "It made me realize that I could find a tool (weapon) that the speed of the shot can make a person can fight a thousand people, it will reduce number of troops needed and I was feeling it will be easier to prepare meals for the soldiers. "Gatling gun used most successfully to expand European colonial empire with indigenous army mercilessly tortured with primitive weapons.
4.TNT
Joseph Wilbrand was a German chemist who discovered trinitrotoluene in 1863 that used for yellow dye. But not until 1902, when realizing the explosive power of TNT explosives and used as weapons extensively by both sides during World War I and World War II. Until now, even TNT was used in the military.
5. Leaded Gasoline
Thomas Midgley was the man who invented Freon refrigerant CFC as a safe material to replace toxic materials such as ammonia coolant in widespread use. However, that result from these materials apparently extensive damage to the ozone layer. Other well-known idea is to add lead to gasoline tetraetil causing health problems of the world, and death from lead poisoning. He was considered a man of "the most impact on the atmosphere than any other person in the history of the earth."
6. Sarin Gas
6. Sarin Gas
Dr. Gerhard Schrader was a German chemist who specializes in the discovery of new insecticides, hoping to make progress for the fight against hunger in the world. However, Dr. Schrader famous for the discovery of dangerous toxic gases such as sarin and tabun, and because of this, sometimes he was called "the father of toxic gas".
7. Nuclear Fusion
7. Nuclear Fusion
Sir Marcus Laurence Elwin Oliphant was the first to menngetahui that solid hydrogen nuclear can be reacted with one another. This fusion reaction is the basis of the hydrogen bomb. Ten years later, American scientist Edward Teller explore Oliphant discovery to make. However, Oliphant who just want to know the structure of the nucleus of the atom does not expect its use in the future.
8. Rocket
8. Rocket
Although his passion and dream is to use a rocket astronomy in exploring outer space, the work of Wernher von Braun used to make the Nazi V2 rockets that killed 7250 soldiers and civilians and an estimated 20,000 workers during construction. Then, in the U.S. he made a series of rocket ICBM capable of carrying nuclear explosives as well as many who carried around the world before him to save his reputation by making the Saturn V rocket that took man to the moon.
9. Concentration Camp
Frederick Roberts, Lord Roberts first made a refugee camp to provide protection to civilians who attacked the family left home for various reasons in the Boer War. However, when Lord Kitchener to replace Roberts as the top commander in South Africa in 1900, the British introduced new tactics in order to destroy the guerrilla attacks and the current growth of civilians. Kitchener initiated plans to "get rid of a series of guerrilla attacks in gerkan systematic, organized like a sporting shoot, with success determined by a bag of dead, captured and wounded, and for a clean sweep of any country that can provide food for the perpetrators of guerrilla attacks, including women and children. "strategy captured 28,000 people as a Boer prisoner of war and other 25 630 thrown into the sea. Most of the rest of the Boer people in the local camps were women and children. More than 26,000 women and children died in these concentration camps.
10. Ecstasy
Anton Köllisch make the 3.4-metilendioksimetamfetamin as research results in the form of a drug to counteract the bleeding is not normal. Research results are not ignored for 70 years to become well known among the dance club in the early 80s. And originated from the custom Rave (dance party) at the end of the 80s who adopted as the drug of choice is Ecstasy that makes MDMA into four major illegal drug that killed about 50 people per year in the UK. The inventor died in World War I.
Asupan garam yang tinggi diketahui dapat meningkatkan tekanan darah, dimana diketahui menyebabkan beberapa penyakit serius sperti penyakit jantung, parlysis, dan struk. Fakta ini telah dibuktikan oleh penelitian INTERSALT melibatkan lebih dari 10.000 orang pada 52 pusat studi, meskipun efeknya (penyakit) berbeda antara satu orang dengan yang lainnya.
Para peneliti yang bekerja dalam sebuah penelitian besar yang dilakukan pada 2007 menemukan bahwa pasien dengan tekanan darah tinggi yang normal mendapat keuntungan secara signifikan dengan mengurangi asupan garam mereka, oleh karena itu risiko mereka menderita penyakit kardiovaskuler menurun hingga 25 persen untuk 10 hingga 15 tahun mendatang. Kemungkinan mereka meninggal akibat penyakit kardiovaskuler pun juga turun sebanyak 20 persen.
Mereka yang mengonsumsi sedikit garam kurang rentan untuk mengidap stroke. Bahkan, penelitian menyebutkan, mengurangi satu gram asupan garam dapat menekan risiko mengalami stroke hingga seperenam. Jika dikurangi dua gram, risiko menurun hingga sepertiga, dan jika dikurangi tiga gram, kemungkinan terkena stroke berkurang hingga setengahnya.
Beberapa orang tidak mengalami hipertensi meski mengasup garam dalam jumlah tinggi. Tetapi, rekam medis menunjukkan, orang-orang tersebut mengalami hipertrofi ventrikel kiri atau pembesaran jaringan otot yang membuat dinding pada ruang pompa utama jantung dimana dapat mempertinggi risiko penyakit kardiovaskuler.
Jumlah natrium dalam tubuh menentukan tingkat cairan dalam tubuh Jika Anda mengkonsumsi terlalu banyak garam, ginjal akan kesulitan mengeliminasi kelebihan garam dan tubuh Anda akan menahan cairan, yang kadang-kadang menyebabkan pembengkakan di sekitar jantung. Dokter menyarankan pengurangan asupan garam sebagai pengobatan untuk pembengkakan.
Asupan garam yang tinggi dapat mempengaruhi sistem pencernaan dalam tiga cara :
: Mengkonsumsi garam terlalu banyak dapat menyebabkan masalah seperti rambut beruban dan rontok. karena itu bila rambut anda saat ini rontok, maka perhatikan apakah konsumsi garam anda saat ini sudah bisa dibilang banyak atau tidak.
Ketika kita menyantap makanan yang mengandung garam tinggi, sekresi air empedu akan meningkat, yang mana dapat meningkatkan densitas darah sehingga menurunkan vitalitas. Hal ini juga dapat menyebabkan bibir menjadi kering dan berdarah. Dokter menyarankan untuk mengurangi asupan garam kepada mereka yang mengalami masalah dengan kulit.
Kelebihan garam mencegah penyerapan kalsium dalam tubuh, sehingga dapt menyebabkan terjadinya osteoporosis. Dalam sebuah penelitian yang dilakukan pada wanita pascamenopause ditemukan bahwa wanita mengonsumsi garam dalam jumlah tinggi lebih banyak kehilangan mineral tulang lebih banyak dibanding dengan mereka yang tidak--mengkonsumsi garam berlebih.
