point to where retail technology is headed - and which problems are most urgent for retailers to solve. Here are the four key challenges these startups are tackling, and how their solutions could ...

Here's what you need to try solving the problems yourself ... set to between 37 and 40 degrees Fahrenheit (2.8 and 4.4 degrees Celsius). Place a thermometer inside a glass of water, place the ...

In a normal fault, the rock above the fault plane moves down the slope of the fault (figure 4). Ask a student to demonstrate this using the cardboard. Remind them that the cardboard represents a ...