But how do we get the sails and their spacecraft into space? Let's take a look. You want holes in the sail? Les Johnson, of Marshall Space Flight Center, holds a rigid, lightweight carbon fiber material that gav
Poke a hole in the center of the cardboard lid large enough to fit the laboratory thermometer. The fit should be snug, though, so no heat will escape through the hole. Insert the thermometer far enough through the lid so the sensitive end will reach near the bottom of the coffee cup an...
The simplest kind of barometer is a tall closed tube standing upside down in a bath of mercury (a dense liquid metal at room temperature) so the liquid rises partly up the tube a bit like it does in athermometer. We use mercury in barometers because it's more convenient than using water...
calibration results to calculate new adjustment parameters for the probe being calibrated. This is the process of solving a set of equations that contain the calibration data to find a set of coefficients unique to the RTD and calibration. It’s easiest to invest in software that can do this...
How do we figure out the scale? Making a Celsius (centigrade) thermometer is easy, because it's based on the temperatures of ice and boiling water. These are called the two fixed points. We know ice has a temperature close to 0°C while water boils at 100°C. If we dip our ...
“sample particle” that acts as a thermometer. Each individual quantum wave function of the large system has a specific energy, but no well-defined temperature – just like a single classical particle. But if you now pick out the sample particle from the single quantum state and measure its...
Adjust your mill gap by 0.1 mm increments. Next, verify mash pH with a calibrated meter and adjust with food-grade lactic or phosphoric acid to hit 5.2 to 5.6. Ensure strike water calculations and sparge rates keep pH stable. Confirm thermometer accuracy with ice-water and boiling-point check...
A thermometer that is reading accurately at the ice point (or boiling point) will read accurately or within specification through its full range. Some people wonder why they shouldn’t do such a thermometer speed test in food, since that is where they actually use their thermometers. The answe...
How do you determine the absorbance when you know the EC is 19,300 M^{-1} cm^{-1}? Why are different wavelengths used for red and blue dye in a spectrophotometer? List three ways that pH can be measured in the laboratory and briefly describe how each method works. Briefly explain how...
Materials - Beaker, Hot Plate, Saran Wrap, Stopwatch, Thermometer, Water Methods - In the beginning of the lab, the beaker filled with boiling water was taken off of the hot place and saran wrap was wrapped around it. After that, a thermometer was placed inside of the water. Next, the...