Broadly speaking, endocrine disorders may be subdivided into three groups: 1  Endocrine gland hyposecretion (leading to hormone deficiency) 2  Endocrine gland hypersecretion (leading to hormone excess)  Tumours (benign or malignant) of endocrine glands.
(Alexander Nie / Flickr) Last week, Elon Musk announced that the Tesla Roadster would be receiving a retrofit upgrade that bumps its range to around 350 miles. Under ideal driving conditions, Musk claimed, the new Roadster can go as far as 400 miles without stopping to recharge. Naturally, a lot of Tesla watchers are probably wondering when the Model S (which is significantly more affordable but still out of reach of most consumers) will benefit from this technology.
It is an interesting phenomenon, particularly when you begin to look at how many of us actually use our cars. According to the US Bureau of Transportation Studies, 78% of drivers do less than 40 miles (65km) a day â a trivial distance for many of todayâs electric cars. In fact, the poster child of electric cars â the Tesla â has a range of 300 miles (485km) using some batteries.