Several other types of capacitor are available for specialist applications. Supercapacitors store large amounts of energy. Supercapacitors made from carbon aerogel, carbon nanotubes, or highly porous electrode materials, offer extremely high capacitance (up to 5 kF as of 2010[update]) and can be used in some applications instead of rechargeable batteries. Alternating current capacitors are specifically designed to work on line (mains) voltage AC power circuits. They are commonly used in electric motor circuits and are often designed to handle large currents, so they tend to be physically large. They are usually ruggedly packaged, often in metal cases that can be easily grounded/earthed. They also are designed with direct current breakdown voltages of at least five times the maximum AC voltage.
As of 2010, what is the highest capacitance a supercapacitor has achieved?
up to 5 kF

Damage to a German steel facility occurred during a DST transition in 1993, when a computer timing system linked to a radio time synchronization signal allowed molten steel to cool for one hour less than the required duration, resulting in spattering of molten steel when it was poured. Medical devices may generate adverse events that could harm patients, without being obvious to clinicians responsible for care. These problems are compounded when the DST rules themselves change; software developers must test and perhaps modify many programs, and users must install updates and restart applications. Consumers must update devices such as programmable thermostats with the correct DST rules, or manually adjust the devices' clocks. A common strategy to resolve these problems in computer systems is to express time using the Coordinated Universal Time (UTC) rather than the local time zone. For example, Unix-based computer systems use the UTC-based Unix time internally.
What time system do some computer systems use to avoid the issues of changes in local time?
Coordinated Universal Time

It was not until 9 June 1982, with the Circulaire sur la langue et la culture régionales en Alsace (Memorandum on regional language and culture in Alsace) issued by the Vice-Chancellor of the Académie Pierre Deyon, that the teaching of German in primary schools in Alsace really began to be given more official status. The Ministerial Memorandum of 21 June 1982, known as the Circulaire Savary, introduced financial support, over three years, for the teaching of regional languages in schools and universities. This memorandum was, however, implemented in a fairly lax manner.
What is the name of the memorandum that past on June 21, 1982?
Circulaire Savary