视频介绍鲁班大约生于公元前507年，本名公输般，因为“般”与“班”同音，是春秋战国时代鲁国人，所以称之为鲁班。他主要是从事木工工作。那时人们要使树木成为既平又光滑的木板，还没有什么好办法。鲁班在实践中留心观察，模仿生物形态，发明了许多木工工具，如锯子、刨子等。鲁班是怎样发明锯子的呢？ 相传有一次他进深山砍树木时，一不小心，脚下一滑，手被一种野草的叶子划破了，渗出血来，他摘下叶片轻轻一摸，原来叶子两边长着锋利的齿，他用这些密密的小齿在手背上轻轻一划，居然割开了一道口子。他的手就是被这些小齿划破的，他还看到在一棵野草上有条大蝗虫，两个大板牙上也排列着许多小齿，所以能很快地磨碎叶片。鲁班就从这两件事上得到了启发。他想，要是这样齿状的工具，不是也能很快地锯断树木了吗！于是，他经过多次试验，终于发明了锋利的锯子，大大提高了工效。 鲁班给这种新发明的工具起了一个名字，叫做“锯”。这就是锯子的由来，也是鲁班发明锯子的故事！ Lu about was born in this surname 507 BC to lose, name class. Because he is LuGuoRen, so people milnwood lu. Some books for or to lose a writing autumn plate. He is engaged woodworking work. When people to make trees to become already flat and smooth board, still do not have what good method. Lu in practice watched, imitate biological form, invented a lot of woodworking tools, such as saws, a plane, etc. How is the invention saws lu? According to legend once he into deep cut trees, carelessly, hand was a kind of grass leaf blade, he ripped off lightly touched, originally leaves both sides have 8-cm-long teeth, and his hand was these small teeth ripped, he also saw in a tree on there is a important weeds locust, two big BanYa also lined by many small teeth, so can quickly grinded blade. Lu from these two things got a inspiration. He thought, if such dentate tools, isn't also can quickly sawed through trees! Hence, he after many tests, finally invented the sharp saws, greatly improving the working efficiency |
