The most complex part of a self-driving system is the software that collects the data, analyses it and actually drives the vehicle. It has to be capable of recognising and differentiating between cars, bikes, people, animals and other objects as well as the road surface, where the car is in relation to built-in maps and be able to react to an often unpredictable environment. … [Read more...] about Self-driving cars: who’s building them and how do they work?
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The biggest problem is energy density – how much energy can be stored in a given size and weight. Lithium-ion batteries, first introduced in 1991 and used in phones, cars and other rechargeable devices, store between 150 and 250 watt-hours per kilogram (Wh/kg). To put that in perspective, a fridge uses around 1,600 Wh a day, and petrol stores about of 13,000 Wh/kg – or more than 50 times the energy of even the best lithium-ion batteries. … [Read more...] about Huge profits in store for firm that can make a great leap in battery technology
"In the absence of a comprehensive energy and climate policy you really have to take assertive action on smaller practical measures that you can take and implement now because if you're going to wait five or 10 years the curve to meet what science tells us to do becomes ever more steep." … [Read more...] about Barack Obama unveils ‘historic’ agreement on fuel economy standards
What to expect: Spain’s string of volcanic islands just off the coast of Africa are an enticing mix of lunar-like landscapes, extreme peaks, wild forests and black sands. La Palma is home to Faro Punta Cumplida, a 152-year-old active lighthouse that has been converted into a luxury hotel. There are four new bedrooms on the ground level, 158 steps below the watchtower. Climb to the top for a view of the island’s lush landscape. On Gran Canaria, where black sands meet the Atlantic Ocean, Santa Catalina, built in 1890, has recently reopened after a swanky refurb. … [Read more...] about Tokyo and Nashville are among 2020’s 10 hottest destinations – which will you choose for your holiday?
The natural resources minister, Seamus O’Regan, said on Saturday that military reservists might be called in, but details of the assistance had yet to be worked out. The immediate priority will be snow removal and clearing roads to the snowbound hospital, he said. … [Read more...] about ‘Snowmageddon’: cleanup begins after record Newfoundland storm