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While the state of charge is usually expressed using percentage points (0 % = empty; 100 % = full), depth of discharge is either expressed using units of Ah (e.g. for a 50 Ah battery, 0 Ah is full and 50 Ah is empty) or percentage points (100 % is empty and 0 % is full). The capacity of a battery may also be higher than its nominal rating.
In a battery electric vehicle (BEV), the state of charge indicates the remaining energy in the battery pack. [4] It is the equivalent of a fuel gauge.. The state of charge can help to reduce electrical car's owners' anxiety when they are waiting in the line or stay at home since it will reflect the progress of charging and let owners know when it will be ready. [5]
The OLPC XO (formerly known as $100 Laptop, [2] Children's Machine, [3] 2B1 [4]) is a low cost laptop computer intended to be distributed to children in developing countries around the world, [5] to provide them with access to knowledge, and opportunities to "explore, experiment and express themselves" (constructionist learning). [6]
One survey in England of people aged 60–69 recorded 86% of men and 60% of women as sexually active. [380] "Double bagging", the practice of using two condoms at once, is not an extra-effective method of birth control; instead such use is more likely to cause condom breakage due to friction between the condoms. [381]
A lithium-ion or Li-ion battery is a type of rechargeable battery that uses the reversible intercalation of Li + ions into electronically conducting solids to store energy. In comparison with other commercial rechargeable batteries, Li-ion batteries are characterized by higher specific energy, higher energy density, higher energy efficiency, a longer cycle life, and a longer calendar life.
Elon Reeve Musk (/ ˈ iː l ɒ n m ʌ s k /; born June 28, 1971) is a businessman and senior advisor to the U.S. president, known for his key roles in Tesla, Inc., SpaceX, the Department of Government Efficiency (DOGE), and his ownership of Twitter.
Re-narrated Horizon episode, first aired in the UK in 1972. [4]We give you a behind-the-scenes look at the making of a nature film. Oxford Scientific Films Unit shows how it tackles such problems as filming a wood wasp laying its eggs inside trees, the hatching of a chick and the courtship rituals of the stickleback.
The suffix-gate derives from the Watergate scandal in the United States in the early 1970s, which resulted in the resignation of US President Richard Nixon. [2] The scandal was named after the Watergate complex in Washington, D.C., where the burglary giving rise to the scandal took place; the complex itself was named after the "Water Gate" area where symphony orchestra concerts were staged on ...