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Thursday, February 15, 2007
Blindness(from what I read)
Blind is the disability to see lights, colors, and objects. Blindness can be catogorised into congenital and post-congenital. In the case of congenital blindness, only small number of infants patient can be cured through operation. Adult congenital patient cannot be cured totally through cornia transfer. It is because they have not seen colors since birth and have problems in intrepting visual. Most of them gone blind again after operation. They can see visual through their eyes but they cannot interpret the visual that they receive thus ignored it. They return to the old method by the sense of touch. While the post-congenital blindness can be cured through cornea transfer and has no problem seeing things.
Now post-congenital patients will probably need no cornea transfer as a scientific breakthough has been made. It is the bionic eyes which comprises of a digital camera, computer, and cables/wires. The digital camera works by receiving visual and convert the visual into electrical signals. The signals are then sent to a computer which will then turn the electrical signals into electrical impulses by simulating the impulses from an eye. The electrical impulses are then transfered through cables into the brain. Success experiment shown that patient were able to see images through the digital camera but the resolution was poor and it was in black and white. Improvements will be made onto the model to provide a better resolution and probably color vision.
Another variant has also being introduced. It is from a team of researcher from the California's Standford Unvertsity United State America. The different is it does not require cables/wires to be installed to the brain. It uses chip and photodiod which are implated into the eye. The processed data will be transfered to the chip via infra-red which will then activates the photodiod to create impulses to the brain.
In the future I hope that there will be bionic eyes which is good enough to replace human eyes.
Source from
wikipedia and estidot.
Photo from
igargoyle.com/archives/BionicEye.html
Blind is the disability to see lights, colors, and objects. Blindness can be catogorised into congenital and post-congenital. In the case of congenital blindness, only small number of infants patient can be cured through operation. Adult congenital patient cannot be cured totally through cornia transfer. It is because they have not seen colors since birth and have problems in intrepting visual. Most of them gone blind again after operation. They can see visual through their eyes but they cannot interpret the visual that they receive thus ignored it. They return to the old method by the sense of touch. While the post-congenital blindness can be cured through cornea transfer and has no problem seeing things. Now post-congenital patients will probably need no cornea transfer as a scientific breakthough has been made. It is the bionic eyes which comprises of a digital camera, computer, and cables/wires. The digital camera works by receiving visual and convert the visual into electrical signals. The signals are then sent to a computer which will then turn the electrical signals into electrical impulses by simulating the impulses from an eye. The electrical impulses are then transfered through cables into the brain. Success experiment shown that patient were able to see images through the digital camera but the resolution was poor and it was in black and white. Improvements will be made onto the model to provide a better resolution and probably color vision.
Another variant has also being introduced. It is from a team of researcher from the California's Standford Unvertsity United State America. The different is it does not require cables/wires to be installed to the brain. It uses chip and photodiod which are implated into the eye. The processed data will be transfered to the chip via infra-red which will then activates the photodiod to create impulses to the brain.
In the future I hope that there will be bionic eyes which is good enough to replace human eyes.
Source from
wikipedia and estidot.
Photo from
igargoyle.com/archives/BionicEye.html
Wednesday, February 14, 2007
MP3 player
When buying a MP3 player the most important thing to look is the memory. For music lovers of there who want to buy a MP3 player they must first count how many songs that they will download into their MP3 player. By doing the estimation we are going to know the approximate memory space that we need. If you are planning to put mp3 around 200-300 the least memory space is 512MB . Let say that you do not know how much you will put in it, the best memory space for a MP3 player is 2GB and above. Some brands have a hard disk in it rather than a flash memory. MP3 player using hard disk memory offers larger space around 20GB which is vast. You can have the whole jukebox inside the MP3 player. Hard disk MP3 players oftenly cost more than a flash memory MP3 players but it allows you to download high quality music which will take alot of space if you are using a flash memory MP3 player. Due to its large memory space, some brands offer video and photo support which allow you to play video and photo on the player itself. Example of brands that use hard disk are Apple ipod, Creative Zen, and Iriver.
Secondly, if you want to save money I will suggest you buy MP3 with expandable memory via SD/MMC or other cards. Expandable memory allows you to change card to expand the memory of the MP3 player just like changing a CD from a CD player. The highest memory space of card in the market currently is 4GB which is around 900 MP3. The advantage of the expandable memory is that you can take the card out and put it on another devices. While the flash memory MP3 players has no removable memory which you need to decide how much music do you want in your player. You will always need to buy the highest memory for a flash memory MP3 player.
Buy MP3 and MP4 Players at Factory Prices from China at DHgate
Like choosing a digital camera size does matter. The size is preferably small and compact which allows you to put in your pocket. Flash memory MP3 players comes in small size but the hard disk memory MP3 player is slightly larger. Improvement often being made to reduce the size if not thinner. Talking about the weight of the MP3 player, it is mostly depends on where do you want to put. If you want to put it in your pocket it is advised to choose a lighter weighted MP3 player. But if you want to put it in the bag then weight does not matter.
For better music quality it is recommend that you find a MP3 player which has equalizer feature. Equalizer allows you to control the bass and treble of the music so that you can get the best effect. Most MP3 player has a preset equalizer which you can choose only the theme but not the individual frequency. On the other hand the type and the perfomance of the headphone should be concerned. Some headphones come with voice cancelling feature which automatically create a silent surrounding so that noise will not defect the quality of music that you listen. There are also airtight headphones which is tightly placed in your ears. This kind of headphones produces better bass and treble with less noises.
The type of battery the MP3 player uses also important. Most players uses AAA battery which is easier to find. But you need a rechargeable battery to save cost. The best option is to use in-built rechargeable battery. Most hard disk players have in-built battery.
CD players which supports MP3 is not recommended because the performance of MP3 will be affected. Shocks will make MP3 jerky. Although CD player produces better sound quality but you need an anti-shock for it.
Finally you need to ensure the format of music that your MP3 player supports. Some MP3 players cannot play copyright protected MP3. So makes sure you do some research on that .Now there is a type of player called the MP4 player which allows you to download music video as well as MP3 files. If you want to buy one of those make sure that it is the best one that you could find. These player often have problem with the format of music video.
(photos are sample only)
When buying a MP3 player the most important thing to look is the memory. For music lovers of there who want to buy a MP3 player they must first count how many songs that they will download into their MP3 player. By doing the estimation we are going to know the approximate memory space that we need. If you are planning to put mp3 around 200-300 the least memory space is 512MB . Let say that you do not know how much you will put in it, the best memory space for a MP3 player is 2GB and above. Some brands have a hard disk in it rather than a flash memory. MP3 player using hard disk memory offers larger space around 20GB which is vast. You can have the whole jukebox inside the MP3 player. Hard disk MP3 players oftenly cost more than a flash memory MP3 players but it allows you to download high quality music which will take alot of space if you are using a flash memory MP3 player. Due to its large memory space, some brands offer video and photo support which allow you to play video and photo on the player itself. Example of brands that use hard disk are Apple ipod, Creative Zen, and Iriver.Secondly, if you want to save money I will suggest you buy MP3 with expandable memory via SD/MMC or other cards. Expandable memory allows you to change card to expand the memory of the MP3 player just like changing a CD from a CD player. The highest memory space of card in the market currently is 4GB which is around 900 MP3. The advantage of the expandable memory is that you can take the card out and put it on another devices. While the flash memory MP3 players has no removable memory which you need to decide how much music do you want in your player. You will always need to buy the highest memory for a flash memory MP3 player.
Buy MP3 and MP4 Players at Factory Prices from China at DHgate
Like choosing a digital camera size does matter. The size is preferably small and compact which allows you to put in your pocket. Flash memory MP3 players comes in small size but the hard disk memory MP3 player is slightly larger. Improvement often being made to reduce the size if not thinner. Talking about the weight of the MP3 player, it is mostly depends on where do you want to put. If you want to put it in your pocket it is advised to choose a lighter weighted MP3 player. But if you want to put it in the bag then weight does not matter.
For better music quality it is recommend that you find a MP3 player which has equalizer feature. Equalizer allows you to control the bass and treble of the music so that you can get the best effect. Most MP3 player has a preset equalizer which you can choose only the theme but not the individual frequency. On the other hand the type and the perfomance of the headphone should be concerned. Some headphones come with voice cancelling feature which automatically create a silent surrounding so that noise will not defect the quality of music that you listen. There are also airtight headphones which is tightly placed in your ears. This kind of headphones produces better bass and treble with less noises.
The type of battery the MP3 player uses also important. Most players uses AAA battery which is easier to find. But you need a rechargeable battery to save cost. The best option is to use in-built rechargeable battery. Most hard disk players have in-built battery.CD players which supports MP3 is not recommended because the performance of MP3 will be affected. Shocks will make MP3 jerky. Although CD player produces better sound quality but you need an anti-shock for it.
Finally you need to ensure the format of music that your MP3 player supports. Some MP3 players cannot play copyright protected MP3. So makes sure you do some research on that .Now there is a type of player called the MP4 player which allows you to download music video as well as MP3 files. If you want to buy one of those make sure that it is the best one that you could find. These player often have problem with the format of music video.
(photos are sample only)
Monday, February 12, 2007
Creative Prodikeys PC-MIDI
Can you imagine how you can work and play at the same time? Creative Prodikeys PC-MIDI keyboard is your choice. The Creative Prodikeys PC-MIDI is a keyboard that has music keys on it just like those you found on a piano or organ. It is a multimedia keyboard that allows you to have a full control of media and system applications. The Singapore based company has introduce this range of keyboard to compete with other major players such as Apple, Microsoft,and Logitech. The keyboard works just like any other keyboard just that it has several added features. Besides the standard QWERTY keyboard and the F-keys there are multimedia buttons. The multimedia buttons are the music button, communication buttons such as internet browser, email, and instant messenger which also work as the sustain/octave shift when you are using the music keys, organizer which include calculator, address book, and calender, My Favourite buttons which you can access documents, photos, and folder easily, the system buttons which allow you to lock your computer or put your computer on stand-by, and lastly there are media playback buttons which allow you to control your media player. All these multimedia buttons is arrange with a small distant apart so that you can seperate the different function. A volume control wheel is also included on the keyboard. It is place beside the QWERTY keyboard. Will all the multimedia buttons and wheel you will never have to touch the mouse again to control your media player. The QWERTY keyboard is sleek and silent even a fast typist finds it hard to get sound out from it. But there may have some defect due to its manufacture period which you find some keys are a little bit sticky. The dept of the keys when pressed is quite shallow that you can miss some keys or spoil it when you pressed it hard.
The music keys is place under the QWERTY keyboard. You can play the music keys using the software provided such as Creative FunMix, EasyNotes and MiniKeyboard. The FunMix allows you to play various kind of sound effect and music and you can also record the Mix that you played. While the EasyNotes allows you to learn music by using midi files. The pre-installed midi files allow you to learn to play simple musics and if you want something more you can use your own or downloaded midi files to learn how to play. But not all your midi files or downloaded midi can be used using this software. The EasyNotes does not allow you to play two tracks at the same times. So if you have a midi which have several tracks you have to choose one of it to learn ( I will suggest that you use the melody track to learn) or you can learn all of the tracks and combine it using you mind. But you need time to do that if you do not know music notes at all. The MiniKeyboard software allows you to use the music key like a mini keyboard which you can play music just like playing the piano and you can record your own music. There are many instruments to choose from from piano to gunshot. The music keys somehow is not as sensitive as it seems because you will miss one or two keys when playing music fast. You need to press harder to get the tone. When you are not using the music keys, there is a cover for the music keys which works as the palm rest for your keyboard.
This keyboard is compatible to most of the software available such as Overture. You are able to use other software to record the music you played. But there are some softwares which is not compatible or are not working well with this keyboard. They appear to be lag and the key only appear a few second after you play it. So it will effect the quality and performance of your music. This keyboard is recommended to use Creative Sound Blaster X-Fi for the best result. Bundle with this keyboard is the software CD and the snap-on color faceplate which you can change your self to change the mood of the keyboard. The provided faceplate are in grey and pink. Since the installation of driver of this keyboard in Window Xp will encounter some problems, the Window Xp installation manual is also included depending on the manufacturer.
This keyboard is suitable for those who use cellphone that supports midi. It allows you to play and save music so that you can send it to your phone as a ringtone.
(photos are sample only)
Limewire,Bearflix, and Morpheus files sharing softwares
Downloading files from the internet could not be any faster by using Peer-to-peer based files sharing softwares. Limewire, bear flix, Morpheus and Winmx are examples of P2P files sharing softwares. P2P is basically enable users to download files from more than one source. It makes downloading files, musics, videos, and photos incredibly fast. Compared to single sourse download it takes as fast as 3 minutes to complete a 3MB download depends on the speed of the connection. Currently Limewire is the most popular download software according to www.download.com and followed by Bearflix and Morpheus. The three of them run on Gnutella network.
Limewire has the most users among the three which makes search result better and more accurate. It is simple to use as the layout is simple. All buttons are easy to reach and understand. It also supports torrent which users will use it to download torrent files. When you are searching for files through Limewire the search result will be display in a list which the file contains the most sources will be rank first in the list. By downloading the files with the most sources the speed of download will be increased. The reason is the rate of data transfer has increased which you download several parts from different sources. Some music, video and photo download need license before you can download it. Most of the music can be download without license enquiry. Bearflix is suitable for video download. Like Limewire its template is also simple but with different design. Searching video files is easy and they are arrange in rank just like Limewire. You can leave it runs at the background and it will complete the download for you each time you connect to the net. License enquiry is weak and content filter is easily by-passed.
Morpheus on the other hand has a more sophisticated design and the layout is a little bit complicated (you might get lost !!!). Downloading videos and musics is fast but the problem with the Morpheus is the strict license enquiry which you cannot download any video or music that you like without license. Even home made videos or sound are hard to be downloaded. But if you are downloading a zip files the Morpheus is the best. (Logos are sample only)
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