时间单位与存储单位换算

秒以下的时间单位有:秒(s)、毫秒(ms)、微秒(μs)、纳秒(ns)、皮秒(ps)、飞秒(fs)、阿秒(as)、渺秒(ds)

时间单位换算

1 s = 10^3  ms（毫秒） = 10^6  us（微秒）= 10^9  ns（纳秒） = 10^12 ps（皮秒） = 10^15 fs（飞秒）= 10^18 as（阿秒）= 10^18 ds（渺秒）= 10^43 Planck Constant（普朗克常数）

时间单位实际长度

1                                                 s=1 000                                        ms =1 000 000                                  us=1 000 000 000                            ns=1 000 000 000 000                     ps=1 000 000 000 000 000               fs=1 000 000 000 000 000 000             as=1 000 000 000 000 000 000 000    ds=1 000 000 000 000 000 000 000 000 000 000 000 000 000 000 0  Planck Constant

      毫秒                                                                                                                                                                                                                                                                                                                                                                                                                      　　毫秒是一种较为微小的时间单位，是一秒的千分之一。典型照相机的最短曝光时间为一毫秒。一只家蝇每三毫秒扇一次翅膀；蚊子二十毫秒振翅一次；蜜蜂则每五毫秒扇一次。由于月亮绕地球的轨道逐渐变宽，它绕一圈所需的时间每年长两毫秒。在计算机科学中，10毫秒的间隔称为一个jiffy。                                                                                                                                                   微秒                                                                                                                                                                                                                                                                                                                                                                                                                      　　即百万分之一秒,光在这个时间里可以传播300米，大约是3个足球场的长度，但是海平面上的声波只能传播1/3毫米。高速的商业频闪仪闪烁一次大约持续1微秒。一筒炸药在它的引信烧完之后大约24微秒开始爆炸。                                                                                                                                                                                                                                          纳秒                                                                                                                                                                                                                                                                                                                                                                                                                      　　一秒的10亿分之一，即等于10的负9次方秒。常用作内存读写速度的单位。光在真空中一纳秒仅传播30厘米（不足一个步长）。个人电脑的微处理器执行一道指令（如将两数相加）约需2至4纳秒。另一种罕见的亚原子粒子K介子的存在时间为12纳秒。                                                                                                                                                                                            皮秒                                                                                                                                                                                                                                                                                                                                                                                                                      　　即十亿分之一秒的千分之一,最快晶体管的运行以皮秒计。一种高能加速器产生的罕见亚原子粒子b夸克在衰变之前可存在1皮秒。室温下水分子间氢键的平均存在时间是3皮秒。                                                                                                                                                                                                                                                                                     飞秒                                                                                                                                                                                                                                                                                                                                                                                                                      　　飞秒（femtosecond）也叫毫微微秒，简称fs，是标衡时间长短的一种计量单位。1飞秒只有1秒的一千万亿分之一，即1e?15秒或0.001皮秒（1皮秒是，1e?12秒）。即使是每秒飞行30万千米的光速，在一飞秒内，也只能走0.3微米，不到一根头发丝的百分之一。可见光的振荡周期为1.30到2.57飞秒。一个分子里的一个原子完成一次典型振动需要10到100飞秒。完成快速化学反应通常需要数百飞秒。光与视网膜上色素的相互作用（产生视觉的过程）约需200飞秒。阿秒                                                                                                                                                                                                                                                                                                                                                                                                                      　　阿秒英文名是attosecond，相当于10的负18次秒 ，是非常小的时间单位。如果宇宙的年龄几百亿年，那么10的负18次 相当于其中的1秒。                                                                                                                                                                                                                                                                                             渺秒                                                                                                                                                                                                                                                                                                                                                                                                                      　　渺秒，百亿亿分之一秒，最短暂的时间。中性π介子的寿命。科学家是用渺秒来对瞬时事件进行计时的。 研究人员已经用稳定的高速激光产生了仅持续250渺秒的光脉冲。                                                                                                                                                                                                                                                                                                                      普朗克常数        可能持续的最短时间 ,尽管渺秒这一时间间隔短得无法想像，但是和普朗克常数相比还是很长的。普朗克常数大约为10^43分之一秒，被认为是可能持续的最短时间。                

计算机存储单位有:B、KB、MB、GB、TB、PB、EB、ZB、YB、BB

存储单位换算  1 B = 8     bit1KB = 10^3  byte1MB = 10^6  byte1GB = 10^9  byte1TB = 10^12 byte1PB = 10^15 byte1EB = 10^18 byte1ZB = 10^21 byte1YB = 10^24 byte1BB = 10^27 byte1NB = 10^30 byte1DB = 10^33 byte     

存储单位实际长度　b1 B = 8 bit 1kB = 1 000                                        1MB = 1 000 000                                    1GB = 1 000 000 000                                1TB = 1 000 000 000 000                            1PB = 1 000 000 000 000 000                        1EB = 1 000 000 000 000 000 000                    1ZB = 1 000 000 000 000 000 000 000                1YB = 1 000 000 000 000 000 000 000 000            1BB = 1 000 000 000 000 000 000 000 000 000        1NB = 1 000 000 000 000 000 000 000 000 000 000    1DB = 1 000 000 000 000 000 000 000 000 000 000 000