title: "Laacht"
text: "Laacht as en kirew faan elektromagneetisk strualen, diar wi s\u00e4 k\u00f6n. Jo haa en waagenlengde faan 380\u00a0nm bit 780\u00a0nm.\n\nSpektrum \nDiar san oober uk strualen m\u00e4 kurter of linger waagenlengde. Uk jo haa en grat bed\u00fc\u00fcdang f\u00f6r a minsken, man wi k\u00f6n jo ei s\u00e4.\n\n<div style=\"clear:left;\" /div>\n\nFaard faan't laacht \nIar mend am, det laacht wiar so \u00fcnwis gau, an det faard  wiar saner aanj. Daalang witj wi det beeder:\n\nWaagen an strualen \nAm koon det laacht uk \u00fcs strualin faan photonen uuns\u00e4. Son photon h\u00e4\u00e4 en energii faan\n\nDiarbi as  det frekwens faan't laacht an  det Planck-taal m\u00e4 .\n\nEegenskapen \nWan laacht \u00fc\u00fcb en materiol draapt, koon det diarbi:\n\nKl\u00f6\u00f6ren \n\u00dcnlik kl\u00f6\u00f6ren hinge faan \u00fcnlik waagenlengden uf:\n\nLuke uk diar \n\nOptik"