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Sekelompok peneliti yang diketuai oleh pakar biomekanika Andrew Martin dari Institute for Technical Zoology and Bionics [Institut Zoologi Teknik dan Bionika] di Bremen, Jerman, meneliti kaki seekor laba-laba pelompat berukuran kecil (Evarcha arcuata) dengan menggunakan mikroskop elektron. Gambar yang mereka dapatkan memperlihatkan serangkaian rambut-rambut panjang (setae) di bawah telapak kakinya, sebagaimana yang dijumpai pada laba-laba lainnya. Di bagian permukaan ujung bawah atau bagian telapak dari masing-masing rambut ini tertutupi oleh rambut-rambut yang jauh lebih kecil lagi (setule) dengan ujung berbentuk segitiga. Untuk memastikan jenis gaya tarik-menarik yang berperan, para ilmuwan tersebut mengukur gaya tarik-menarik antara kaki laba-laba dengan sebuah batang kecil, serta menggunakan cara yang lebih sering diterapkan dalam ilmu bahan. Penghitungan oleh para ilmuwan tersebut...
Sebuah perangkat optik murah yang terilhami rancangan pada mata lalat membuka pintu bagi pengembangan peralatan-peralatan pencitraan baru di dunia kedokteran (medical imaging device). Manfaat dari penggunaan perangkat pencitraan magnetis dalam pemeriksaan dan pengobatan di dunia kedokteran tidaklah diragukan. Para ilmuwan Israel kini tengah mengembangkan perangkat baru di bidang ini. Mereka berharap bahwa alat ini, yang masih dalam tahap pengembangan, akan memberikan lebih banyak keuntungan daripada yang ada sekarang. Keuntungan ini adalah biaya yang lebih murah daripada teknologi pencitraan yang digunakan pada perangkat-perangkat yang sudah ada. Oleh karenanya, jika rencana ini telah menjadi kenyataan, masyarakat akan mendapat kesempatan untuk diperiksa kesehatannya menggunakan alat pencitraan [scan] ini dengan lebih sering. Mahalnya perangkat pencitraan resonansi magnetis [Magnetic...
Buku-buku teks zologi menjelaskan bahwa lidah balistik bunglon diperkuat oleh seutas otot pemercepat (akselerator). Otot ini memanjang ketika menekan ke bawah pada tulang lidah, yang berupa tulang rawan kaku di tengah lidah, yang membungkusnya. Akan tetapi, dalam sebuah penelitian yang telah disetujui untuk diterbitkan oleh majalah ilmiah Proceedings of the Royal Society of London (Series B), dua ahli morfologi yang memelajari kebiasaan makan bunglon menemukan unsur-unsur lain yang terkait dengan gerakan cepat lidah binatang ini. (1) Kedua peneliti Belanda ini, Jurriaan de Groot dari Universitas Leiden, dan Johan van Leeuwen dari Universitas Wageningen, mengambil film-film sinar X berkecepatan tinggi, yakni 500 bingkai per detik, dalam rangka menyelidiki bagaimana lidah bunglon bekerja ketika menangkap mangsa. Film-film ini menunjukkan bahwa ujung lidah bunglon mengalami percepatan...
1- Situs blog Le blog d'Yves Daoudal memuat laporan pada tanggal 2 Februari 2007 tentang Atlas Penciptaan dengan judul "kepanikan Darwinis." 2- Surat kabar Belgia A Voix Autre menyebut pengaruh Atlas Penciptaan Harun Yahya di Prancis dengan ungkapan berikut: "Kepanikan di belakang panggung!" dan "Kepustakaan penganut Penciptaan belum pernah sedemikian dahsyat." 3- Majalah Le Nouvel Observateur menggambarkan wakil terpenting pergerakan paham Penciptaan sebagai, "Harun Yahya sendiri, dengan sumbangsih yang dibuat oleh terbitan-terbitan internasional Harun Yahya." 4- Majalah Science membuat pernyataan berikut tentang buku Atlas Penciptaan yang dikirim ke Prancis dan negara-negara lain dalam terbitannya tanggal 16 Februari 2007: "Ini adalah serangan yang terlihat paling megah terhadap evolusi yang tersaksikan dalam rentang waktu lama: Itu adalah kesepakatan di antara para ilmuwan...
although this adapter is very simple but this circuit is stable and can be used for voltages up to 37volt (by changing the value of R). Fout is minimal 1.25volt if you require a higher power, can ic 5A replaced by LM338, LM350 3A, or also by adding external transistors cross I use it on some equipment. Skema Rangkaian Adaptor variabel 3.7 volt - 37 Volt stability of this LM317 slightly better than the 78xx class because it was used as the feedback output is not only a reference voltage (78xx kls can also be used as adjustable by lifting the voltage reference terminal wrote in the ground). resistance value of the above is not ideal but I used to value used, to the ideal of R can be larger because the feedback terminal below only requires 1mA current. Abaot IC LM317 The LM117 series of adjustable 3-terminal positive voltage regulators is capable of supplying in excess of 1.5A over...
FET is divided into two families: Junction FET (JFET) and Insulated Gate FET (IGFET) or also known as Metal Oxide Silicon (or semiconductor) FET (MOSFET). In contrast to the IGFET, the JFET gate terminal forming a diode with the channel (semiconductor material between the Source and Drain). In its function, this makes N-channel JFET to be a solid-state version of the vacuum tubes, which also forms a diode between the grid and cathode. And also, both (JFET and vacuum tubes) work in "depletion mode", both have a high input impedance, and they conduct electrical current under the control of the input voltage. Mengukur Kerusakan Fet Dengan Multimeter Determination of FET performed by investigators x100 range of black and red on the Source Gate. When the needle to deviate, then the FET is kanalP Janis and if not, the FET is the channel N. Damage to the FET can be observed with a series...
var timestamp = "Saturday, November 28, 2009"; if (timestamp != '') { var timesplit = timestamp.split(","); var date_yyyy = timesplit[2]; var timesplit = timesplit[1].split(" "); var date_dd = timesplit[2]; var date_mmm = timesplit[1].substring(0, 3); } document.write(date_dd); 28 This circuit, connected to the loudspeaker output of an audio amplifier, will indicate the instantaneous output power delivered to the loudspeaker(s) by means of six LEDs illuminating one after another by voltage values increasing little by little, providing the visual impression of a luminous bar or column, increasing and decreasing in height following the increase and decrease of the signal’s level. Skema Rangkaian Indicator Daya Audio Amplifier Notes: The output power indicated by each LED must be doubled when 4 Ohms loads are driven. The circuit can be adapted...
Mice are wild animals and very annoying. "Action bawdy" it could be all kinds ranging from pooping everywhere, rummaging through closets and warehouses, spread diseases (plague), and so on. Just always make a scene! One alternative to overcome this is to use an electronic mouse repellent. In addition to environmentally friendly, this tool can also be used as a hobby and learning the distribution of electronics. To drive these rats disorders, you can create an electronic circuit as shown below. This circuit will generate a 50Khz frequency disturbing enough for a mouse but you do not have worried because you will not hear it. This series is guaranteed by the rats would run because his ears will feel pain from the vibration signal ferkuensi. Skema Rangkain Pengusir Tikus Electronic components on the need to build a mouse repellent electronic circuit is not much, quite cheap and readily...
The following circuit of special functions to detect the presence or absence of signal AF / RF. This circuit is very simple so as to make it requires a relatively low cost. Detektor Signal AF/RF circuit based an audio amplifier and a loudspeaker with a switch input to the AF and RF signal. The whole device can be made as small as possible so that it can be included in a container to keep the peace. Audio amplifier section in this series created by IC TDA 2822M, with a low-power stereo amplifier in 8-pin mini-DIP. This IC is used as a bridge cofiguration to minimize output power up to 250 mW, the loudspeaker is in use 4 ohm, 500mW. Current required is less than 10mA with a 3V battery voltage. Skema Rangkaian Detektor Signal AF/RF List Component R1 : 22K R2, 3, 4 : 4K7 C1 : 1n C2, 6, 7 : 0,1uF C3, 4 : 10uF/16V C5 : 0,01uf D1 : OA79 VR1 : 22K IC 1 : TDA2822M LS : 8 ohm 500mW When...
This series consists of 10 led a mounted sequential, Supply 9V IC1A needed to strengthen to 100 times and move the audio signal IC1B. Sensitivity level of the circuit can be adjusted by changing the value of R4. The value of C4 was changed from 220 to 470nF. Each input R9 must be linked with the IC2 output pins. Skema Rangkain Lampu LED Disko Component List R1 :10K 1/4W R2, 3 : 47K 1/4W R4 : 1K 1/4W R5, 6, 7 : 100K 1/4W R8 : 820R 1/4 C1, 3 : 100nF C2 : 10uF/50V C4 : 330nF C5 : 100uF/25V D1 : 1N4148 D2-D11 : 5 or 3mm LED IC1 : LM358 IC2 : 4017 MIC1 : Miniature electret microphone R9, 10 : 10K 1/4W R11 : 56R 1/4W D12,13 etc : 5 or 3mm LED Q1,2 : BC327 Q3 : BC337 IC Decoder 4017 The 4017 is an extremely useful device for project work and is used in the Games Timer and in various DOCTRONICS construction kits including the Light Chaser and the Matrix Die. When you are familiar with...
Conference calling is an important topic in the business world. With the increase of demand of business conference calling, there is urge to find a provider which offers business conference calling plans with class services at a reasonable rate. Each conference calling supplier offers several plans at different rates, and it can often seem like an hard task trying to understand and determine which is right for you and/or your business. Different Service Providers Vonage is a well-known telecommunications-based company, who offers business conference calling services, as well as a ample variety of allied plans and packages. They have an independent support site, which even has a forum on their website that allows customers and other visitors to post thoughts and comments they may have. Such feedback is important for both the company itself as well as other guests to the website can...
A Mesothelioma diagnosis is never something that you want to get. If you know anything about Mesothelioma at all, you know that it is a highly deadly form of lung cancer, mostly caused by Asbestos. If you know anything about Asbestos, you should know that not only is it deadly, but it is also illegal. What this means for you is that a Mesothelioma diagnosis is almost never no one's fault. It is certainly not your own fault, and a Mesothelioma lawyer will tell you that a Mesothelioma lawsuit and a Mesothelioma are very easy to win and very easy to accomplish. However, if you are looking for a Mesothelioma lawyer, you should be sure that you are looking at the right kind of lawyer. There are several things that you want to look for as you search for the right lawyer for Mesothelioma in California. When you are looking for a Mesothelioma lawyer in California, they can provide you with many...
The typical debt consolidation loan is a type of unsecured personal loan where the only collateral that you have to offer the lender is yourself. Debt Consolidation loan shortly means, exchange of one loan for another. Debt Consolidation loan can be taken anytime if you feel you cannot afford your monthly payment. When you have several high interests debt you can consolidate it into one lower, fixed rate loan. Apply Now Debt Consolidation loans are various sorts of credit types that you are able to use in order to consolidate your debt. There are several different types of loans out there that will allow you to consolidate your debt in different sorts of ways. These ways include second mortgage debt consolidation loans, such as a home equity line of credit home loan, or cash out refinance debt consolidation loan, or even a credit card balance transfer is available to help consolidate...
Web based conferencing in simple terms can be defined as conferencing or discussions via the Internet. It is mainly used for conducting live discussions, meeting or presentations on the Internet. Earlier it was done via text messages on various chat engines, and did not include live discussions, and was known as computer conferencing or Web Based Conferencing. But today with more advancements and faster technologies they are called live discussions. Through web based conferencing we are said to be living in a global village, where we do not need to travel from places to places to meet people and discuss various projects with them. The communication strategies and styles have changed a lot, life has become faster and interpretative, and we can talk to our clients or partners sitting abroad with the loss of not even a single penny. Other features which help in increasing the effectiveness...
A conference call involves the communication between a calling party and more than one listener. There are numerous conference call services available, making it difficult to make a quick decision. The service that you choose will ultimately depend on the expectations and uses you wish get out of your conference calls. For some, only a few details matter, such as price, while others are in need of advanced services like on-the-spot technical support. Below are a few factors to consider when choosing the conference call service that is most compatible with your needs. Business Conference Calls When it comes time to report quarterly stats, many companies turn to conference calls. This allows them to communicate the ups and downs of their business to interested parties. A higher-level company executive, such as the CEO, often reads the company reports. Once the results are revealed,...
Sudah lama saya mencurigai, bahwa alam semesta ini adalah makhluk hidup. Bukan benda mati. Saya melihat dan merasakan, alam semesta ini memiliki 'tujuan hidup' tertentu. Memiliki struktur dan keseimbangan yang akurat. Bisa merespon dan bereaksi. Bahkan, mempunyai kecerdasan dalam beraktifitas. Persis seperti manusia. Cuma, selama ini kita sudah terlanjur mempersepsinya sebagai benda mati. Dalam berbagai pembahasan, kita membagi makhluk di alam semesta ini menjadi 6 kategori. Yang 3 kategori, makhluk berakal. Dan 3 yang lainnya, tidak berakal. Yang berakal terdiri dari malaikat, jin, dan manusia. Sedangkan yang tidak berakal, adalah binatang, tetumbuhan, dan benda mati. Tentu saja, kita juga bisa membaginya secara lebih global, yaitu benda mati dan benda hidup. Yang benda hidup terdiri dari malaikat, jin, manusia, binatang dan, tetumbuhan. Sedangkan yang benda mati adalah seluruh benda...
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Berasal dari masa sekitar 2500 SM, prasasti Ebla memberikan keterangan teramat penting mengenai sejarah agama-agama. Sisi terpenting mengenai prasasti Ebla, yang ditemukan para ahli arkeologi pada tahun 1975 dan yang sejak itu telah menjadi pokok bahasan dari banyak penelitian dan perdebatan, adalah terdapatnya nama tiga orang nabi yang disebutkan dalam kitab-kitab suci. Penemuan prasasti Ebla setelah ribuan tahun dan informasi yang dikandungnya sungguh sangat penting dari sudut pandang perannya dalam memperjelas letak geografis kaum-kaum yang disebutkan dalam Al Qur'an. Sekitar 2500 SM, Ebla adalah sebuah kerajaan yang meliputi suatu wilayah yang di dalamnya termasuk ibukota Syria, Damaskus, dan Turki bagian tenggara. Kerajaan ini mencapai puncak kejayaan di bidang kebudayaan dan ekonominya, namun setelah itu, sebagaimana yang menimpa banyak peradaban besar, menghilang dari panggung sejarah....
Satu kilatan petir menghasilkan listrik lebih besar daripada yang dihasilkan Amerika. Di malam hari, saat hujan deras, langit tiba-tiba menyala, tak lama kemudian disusul oleh suara menggelegar. Tahukah Anda bagaimanakah petir luar biasa yang menerangi langit muncul? Tahukah Anda seberapa banyak cahaya yang dipancarkannya? Atau seberapa besar panas yang dilepaskannya? Satu kilatan petir adalah cahaya terang yang terbentuk selama pelepasan listrik di atmosfer saat hujan badai. Petir dapat terjadi ketika tegangan listrik pada dua titik terpisah di atmosfer – masih dalam satu awan, atau antara awan dan permukaan tanah, atau antara dua permukaan tanah – mencapai tingkat tinggi. KEINDAHAN...
