{
"cells": [
 {
		   "cell_type": "markdown",
	   "metadata": {},
	   "source": [
       "# Chapter 12: ARTIFICAL RADIOACTIVTIY"
	   ]
	},
{
		   "cell_type": "markdown",
		   "metadata": {},
		   "source": [
			"## Example 12.1: ESTIMATE_ITS_AGE.sce"
		   ]
		  },
  {
"cell_type": "code",
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	   "metadata": {
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"source": [
"clc;clear;\n",
"//Example 12.1\n",
"\n",
"//given data\n",
"r=0.5;//ratio of mass of Pb206 and mass of U238\n",
"t=4.5*10^9;//half life in years\n",
"\n",
"//calculation\n",
"T=(log(1+r))*(t/0.693);\n",
"disp(T,'age in years')"
   ]
   }
],
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		   "language": "scilab",
		   "name": "scilab"
		  },
		  "language_info": {
		   "file_extension": ".sce",
		   "help_links": [
			{
			 "text": "MetaKernel Magics",
			 "url": "https://github.com/calysto/metakernel/blob/master/metakernel/magics/README.md"
			}
		   ],
		   "mimetype": "text/x-octave",
		   "name": "scilab",
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