阿Q是绍兴人是吧?
今晚可以多睡一小时
#24 Re: 今晚可以多睡一小时
夏天白天长,前后挪一小时好像天都亮着?冬令时是不是影响更明显?
网上也说daylight saving time不一定更节省能源,照明用电可能节省,但冷气暖气电器用度增加。要是没有明显好处,每年换两次时间还是很麻烦的。是民主党还是共和党坚持要换?
Daylight saving time is intended to save energy, but research on its effectiveness is mixed and often shows negligible savings. During the winter, energy consumption generally increases due to more lighting use and greater demand for heating.
Energy savings related to daylight saving time
Lighting vs. heating: While moving clocks forward (spring) can reduce evening lighting use, studies show this is often offset by increased morning heating or evening air conditioning use. In winter, the opposite is true: moving clocks back can increase evening lighting use, while potentially reducing morning heating needs, but the overall effect is not a clear net savings.
Modern energy use: Lighting now makes up a much smaller portion of home energy use compared to decades ago, especially with the prevalence of energy-efficient LEDs. More significant energy use comes from heating, cooling, and electronics, which diminishes the impact of shifting the clock for lighting alone.
Mixed research findings: Early studies suggested some savings, but later, more comprehensive studies found the savings were statistically insignificant or offset by other energy demands, such as heating and cooling.
#25 Re: 今晚可以多睡一小时
每年调两次,真让人蛋疼。
权力对自由的侵蚀常会以各种暧昧的面目出现,而很少以秘密警察半夜敲门把无辜者拉去枪毙的方式发生;它可能表现为执法机构对权贵的袒护,在弱者受前者欺凌时拒绝提供保护,此时假如弱者有枪,局面就大不一样;权力的滥用也可能以代理人方式进行,当需要使用些见不得人的手段时,常会伪装为平民暴徒。


