生活中,商家们将“纳米”作为产品广告的宣传噱头已经屡见不鲜,但大部分消费者对纳米的概念依然缺乏足够的认知。实际上,纳米(nm)是一个长度单位,其概念最初是由诺贝尔物理学奖得主费曼于1959年在美国物理年会上提出的。此后,1纳米(nm)被定义为10~(-9)米(m)。更为直观的比较是,1纳米相对于1米,就像是一个玻璃弹珠的直径相对于地球的直径。而纳米科学则是在纳米尺寸(1~100nm)范围 In the life, merchants use “nanometer” as a publicity gimmick of product advertisement, but most consumers still lack enough cognition on the concept of nanometer. In fact, nanometer (nm) is a unit of length and the concept was originally proposed by the Nobel Prize winner Feynman at the American Physical Society in 1959. Thereafter, 1 nanometer (nm) is defined as 10 to (-9) meters (m). A more intuitive comparison is that 1 nanometer relative to 1 meter is like the diameter of a glass marbles relative to the diameter of the earth. Nanoscience is in the nanometer size range (1 ~ 100nm)