When an animal can survive for longer, there's a selection for genes that provide longevity, because they can provide a real advantage, Jay Olshanksy, a public health researcher who studies aging, told me last year for an article about the naked mole rat, a rodent that can live for up to 30 years.
This is it, the 5.11 Tactical Series Light for Life PC3.300 flashlight. Unique to this flashlight is that it uses Advanced Capacitors, rather than batteries, to store energy. With a charge time of only 90 seconds and low weight, the Light for Life PC3.300 promises many improvements over conventional power sources. Key Specifications
The time constant gives the time in seconds during which the voltage between the terminating wires of a charged capacitor decreases to 37% due to self-discharging. With capacitance values in the ÂµF range, the time constant at the time of delivery is usually between 2000 and 4000 seconds.