Technology

Technology

A breakthrough may make the mega flow battery commercially viable in the near future

Wind and solar power have the potential to reduce the growth of greenhouse gases and slow the progression of climate change. But since the sun doesn’t always shine and the wind doesn’t always blow, the big hurdle in expanding the use of renewables is the lack of cheap and efficient storage of that energy. That could be about to change.

Technology

Your total is $57.67 — will that be cash, credit or phone?

Magnetic-stripe credit and debit cards are like catnip for hackers, who have been broken into retailers like Target and Home Depot and installed malicious software on their cash registers. Now, chip-based cards are becoming more common in the US and are expected to grow rapidly in the coming year. Then there's Apple Pay, a mobile payment system that eliminates cards entirely. Where is this all heading?