Yessi Pratiwi

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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 / Comments

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 / Comments

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 / 1 comment

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 [...]

Making Light Crystals

Yessi Pratiwi — April 14, 2009 / 2:47 pm / Comments

It was reported in ScienceDaily that the researchers from Ohio State University have developed a new strategy to overcome one of the major obstacles to a grand challenge in physics, that intimately linked to the making of light crystals. Before, in the year of 2008, the researchers from Defense Advanced Research Projects Agency (DARPA) had an [...]

Hydrogen Cars With New Storage System

Yessi Pratiwi — April 6, 2009 / 10:29 pm / 1 comment

The technology of hydrogen cars has been stepping closer to reality. California and Japan have many hydrogen cars being used as fleet vehicles now. Researchers at the Hydrogen Systems Laboratory at Purdue’s Maurice J. Zucrow Laboratories have developed a critical part of a hydrogen storage system for cars that makes it possible to fill up a [...]

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  • jambul — saya akan ikut menyamakan dengan kartu. pertanyaan saya, siapa yang membuat kartu? lalu siapa yg mengocok kartu? apakah sebuah kartu ...
  • nursaidno — gambarnya bagus banget boleh gak tolong paketkan
  • RIANDA GUSTAMA — MUNGKIN PENJABARAN TENTANG SOSL-SOAL KUANTITATIF SANGAT DIPERLUKAN BERHUBUNG MASIH BANYAKNYA PARA CALON MAHASISWA YANG AKAN MENGHADAPI UJIAN MASUK PERGURUAN TINGGI ...
  • hurdi — 1=5 2=25 3=325 4=4325 5=54325 6=654325 7=7654325 8=87654325 9=987654325 10=1098765435 thank's
  • Khamaludin — 1=5 maka 5=1 (sifat komunitatif)
  • annisa — aq pernah buat nata de coco tapi koq setelah 15 hari difermentasi gagal yah?apa penyebab yang paling urgent shg natanya ...
  • yuti — and my question is why you bother wrote comment on this entry if you see the riddle as something occupying?
  • alan — langkah tersingkat adalah, menyebrang bersama sama melalui jembatan yang ada di samping perahu, orang di samping juga ada jembAtan, ngapain ...
  • Amos Ang — Mbak Yessi yg baik, saya mau minta tolong tanya nih, saya punya kutil yg tumbuhnya khusus dibagian wajah saja, mulainya ...
  • once — kecoak tahan nuklir????? bener banget... ku dah buktiin... tak nuklir dia bolak-balik eh gak mati2 dia... waktu itu ku ma temen2 ...