Lv 154 points

# Aaron.J

• ### 數字進位數的變換

請問一下如何將負數的進位數進行變換,例如10進位的負數換成8進位的負數,2進位的負數換成16進位的負數.....等等

• ### 如何開啟Port：7990

請問一下要如何開啟網路設定中的Port：7990

不然ezpeer都不能用....

• ### 爲什麼所有行星都是繞以橢圓形軌道運行??

克卜勒第一定律說:所有行星都沿著橢圓形軌道運行，太陽則位於這些橢圓的一個焦點上，稱為軌道定律

但是爲什麼所有的行星都會繞以橢圓軌道運行？

若行星繞以太陽運行則會有一萬有引力 F = GMm/ r2 太陽質量:M 行星質量:m

軌道半徑:r

所以行星會繞著太陽運行，但為何是繞橢圓軌道？？

• ### 找一首歌的及他譜~~somewhere out there

請問有人有這首somewhere out there的及他譜嗎??

感恩阿~~

• ### 不好意思請問有人可以幫我翻譯嗎??

These are many commonly held belifs about eyeglasses and eyesight that are not proven facts,For instance,some people believe that waring glasses too soon weakens the eyes.But there is no evidence to show that the structure of eyes is changed by wearing glasses at a young age.Wearing the worng glasses,however,can prove harmful.Studies show that for adults there is no danger, but children can develop loss of vision if they have glasses inappropriate.

We have all heard some of the common myths about how eyesight gets bad.

Most people believe that resding in dim light causes poor eyesight, but that is untrue.Too little light makes the eyes work harder, so they do get tired and strained. Eyestrain also results form reading a lot, resding in bed, and watching too much televison. However, although eyestrain may cause some pain or heasdaches, it does not permanently damage eyesight.

Another myth about eyes is that they can be replaced, or transferred from one person to another. There are close to one million nerve fibers that connect the eyeball to

the brain ; as of yet, it is impossible to attach them all in a new person. Only certain parts of the eye-the cornea and the retina-can be replaced. But if we keep clearing up the myths and learning more about the eyes, someday a full transplant may be possible!

學校要用的一篇文章希望有好心人可以幫我翻譯

謝謝~