Figure 1. Caffeine affects heart rate variability in the first five minutes of recovery after physical exercise.

Running on Caffeine

By Maryna Mullerman ’20 Caffeine is a stimulant often found in coffee, energy drinks, and medicine. Many researchers have analyzed its physiological effects, but caffeine’s impact on post-exercise recovery is not widely understood.  Doctor Luana Almeida Gonzaga and researchers from São Paulo State University in Brazil conducted a study focusing on cardiovascular parameters, such as heart rate (HR), blood pressure (BP), respiratory rate (RR), and … Continue reading Running on Caffeine

Figure 1. Radiative sky cooling panels increases the electric efficiency of cooling systems by passively emitting heat into outer space.

Electric-less Cooling

By Meghan Bialt-DeCelie ’19 Cooling systems are one of the largest and most inefficient consumers of electricity. The goal of cooling systems is to reduce the condenser temperature to below the ambient temperature. Evaporative cooling systems can achieve this, but they require a great amount of water loss to do so. A new cooling alternative may be within reach as described in a study led … Continue reading Electric-less Cooling