About 80 percent of all life on Earth is found in the oceans, which cover 71 percent of the planet's surface. Take a look at how colorful life under the sea can be. Learn more about these popular crustaceans that some think of only as a meal. Find out the sizes that these sea creatures are capable of attaining.
Steps. 1  1. Place a dispenser down, and a wooden pressure plate in front of it. 2  2. Connect the dispenser and the pressure plate with redstone. 3  3. Invert the signal by using a solid block with a torch on the other side or on top of the block with redstone going into it.  4. Place a big stack of items in the dispenser.
How to Do Pipette Calibration. Pipettes are necessary equipment often used in chemical laboratories to measure and transfer specific amount of liquid.Pipettes are essentially narrow tube like equipment with a rubber bulb at the top.The tube is numbered from the top to the bottom mostly in increments of ten millimeters.Accuracy in pipette measurement is necessary as any discrepancy in reading can affect the result of chemical reaction.ipettes are essentially narrow tube like equipment with a rubber bulb at the top. The tube is numbered from the top to the bottom mostly in increments of ten millimeters. Accuracy in pipette measurement is necessary as any discrepancy in reading can affect the result of chemical reaction.