Yessi Pratiwi

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Energy-burning Brown Fat In Mice Created

Yessi Pratiwi — July 31, 2009 / 11:36 pm / Comments

Brown fat is known as a certain tissue in mammals that helps warm the body. It is found in patches along the neck and between the shoulders of newborn mammals, including humans, and in adults of hibernating animals. Recently, a study that has been conducted by Dana-Farber Cancer Institute has successfully created an energy burning brown [...]

Hydrogen Technology as Our Next Fuel?

Yessi Pratiwi — July 18, 2009 / 10:38 pm / 2 comments

Have you ever imagined about using Hydrogen as fuel for your daily life? Some of you may have still no idea about the use of this element. Recently, Engineers at the University of Leeds believes that someday, we’ll be able to operate laptop or cars by the old chip fat, extracted from the waste materials. They [...]

Elecric Cars in US

Yessi Pratiwi — July 2, 2009 / 7:45 am / Comments

Electric cars today really get a big attention from US government and commercial viewer. Beside supporting the issue of energy efficiency, electric cars are also claimed to be environmentally frienly, because in most cases, they use an alternative fuel car that uses electric motors and motor controllers instead of an internal combustion engine (ICE). Currently, [...]

Giant Sperm Found in Microfossil

Yessi Pratiwi — June 20, 2009 / 9:28 am / 1 comment

It was reported in ScienceDaily that an international group of researchers led by Dr. Renate Matzke-Karasz, Ludwig-Maximilians-Universität (LMU) in Munich, has indirectly detected signs of giant sperm in fossilized ostracods. Picture shows the length of the filamentous, helical sperm-cells of freshwater ostracods can reach up to ten times the body length of its producer. The longest [...]

New Chemical Weapon In Poison Frogs’ Arsenal Found

Yessi Pratiwi — June 10, 2009 / 6:26 pm / Comments

In the news reported by ScienceDaily, June 9th, it was mentioned that there has been found a surprising chemical weapon used by some Amazonian poison frogs. The poisen itself identified as never been known before, called as the N-methyldecahydroquinolines. As I read on some sources, it is reported that N-methyldecahydroquinolines known to beat the Class of Alkaloids. [...]

New Simple To Manufacture ‘Broadband’ Cloaking Technology

Yessi Pratiwi — May 22, 2009 / 7:51 pm / Comments

Researchers in Purdue University’s Robert and Anne Burnett Professor of Electrical and Computer Engineering. They created a new type of invisibility cloak that is simpler than previous designs and works for all colors of the visible spectrum, making it possible to cloak larger objects than before and possibly leading to practical applications in “transformation optics. the [...]

Smart Polymer Reduces Radioactive Waste

Yessi Pratiwi — May 15, 2009 / 5:39 pm / 1 comment

Radioactive wastes are waste products containing radioactive materials. They are usually the products of nuclear processes, such as nuclear fission. However, industries not directly connected to the nuclear industry may produce large quantities of radioactive waste. Recently, it has been reported in ScienceDaily that Scientists in Germany and India are reporting development of a new polymer [...]

Virtual Heart

Yessi Pratiwi — May 8, 2009 / 5:33 pm / 1 comment

Look at the video! The team of doctors from the Heart Hospital in London, joining with the computer animators from Glassworks, have created a model of heart–a virtual heart–that can be used by heart specialist. NewScientist reported that this super-realistic computer model makes it possible to explore the heart’s anatomy in ways not possible in [...]

New Energy Source?

Yessi Pratiwi — May 6, 2009 / 10:53 am / 1 comment

As well as green plants and algae, some bacteria are also capable of using the energy in sunlight, to get their energy through photosynthesis. The green bacteria are particularly specialised for growth at very low light intensities. The ability of green bacteria to grow at very low light intensities depends on the way the light-absorbing [...]

Music For Heart Disease Healing

Yessi Pratiwi — April 17, 2009 / 9:42 am / 2 comments

Heart disease known to be number one killer in the US, and also the major cause of disability. Researches that related to the cure of heart disease have been widely published. You know, in the report of DOI, it was reported that listen to the music can be the way of heart disease healing. Well, i [...]

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  • Koen — Terima kasih, Echi dan Dhani :). Salah satu misi Pernik Ilmu memang membuka mata masyarakat, dengan bahasa awam, tentang fakta-fakta ...
  • » Mengapa Langit Malam Gelap? ~ Blog Archive ~ Pernik Ilmu (Asia Blogging Network) — [...] pertama di Pernik Ilmu ini berjudul Mengapa Langit Biru :). Tapi kita tahu langit hanya biru di hari yang ...
  • dedy — sebutkan macam2 sel volta!!!kasih gambar dan bagaimana carajanya!!!
  • Taufik Hidayat — Mengapa pd wkt bln purnama kalau kita mancing dilaut, gak ada ikannya yg mau makan umpan yg ada di kail ...
  • sardes — hi.......Q sardes saat ni sedang kul di salah satu PTN yang tentunya FMIPA n jur MM...q mw nanya nih kira2 ...
  • Mukmin — slam kenal mbak Yessi,
  • nurul azizah — salut wat astronot....
  • elang — nyerah dech, apa jawabannya???????
  • In-daH — oo....kERen banget....
  • Erastosthenes — Jadi, 1 drajat itu sbnarnya brp km? 1 drajat itu brp menit?