Creating an Iron or Diamond Pickaxe. 1  1. Know that to mine diamonds, you need either an iron or diamond pickaxe. 2  2. Create a workbench, or crafting table, if you haven't already. 3  3. Create a wooden pickaxe.  4. Create a stone 1  pickaxe. 5. Build or find a furnace.  6. Build an iron pickaxe.
Isotherm an isogram of the temperature of air, water, or soil. Most commonly drawn are isothermal maps showing mean monthly air temperature over a number of years, mean temperature for any period of time, or the temperature at a definite moment of time.
Tips. 1  Some other lines that may be present in a weather map are: 2  Isotherms-all points through which the isotherm passes have the same temperature. 3  Isotachs-all points where the isotach passes have the same wind speed. 4  Numbers on the isobars, such as 1008, is the pressure (in millibars) along that line.