rods and cones

The rods are more sensitive than the cones. However, they are not sensitive to color. They are responsible for our dark-adapted vision…The optimum dark-adapted vision is obtained only after a considerable period of darkness, say 30 minutes or longer, because the rod adaption process is much slower than that of the cones…If you see a dim star in your peripheral vision, it may disappear when you look at it directly since you are then moving the image onto the cone-rich fovea region which is less light sensitive.

http://hyperphysics.phy-astr.gsu.edu/hbase/vision/rodcone.html

光波爐

近期頗受市民歡迎的「光波爐」，會在烹煮過程中產生致癌物。食物安全中心新一期風險簡訊指出，食物在高溫烹煮過程中，會產生致癌物丙烯酰胺，建議市民利用較低的溫度以達燒烤效果。

https://hk.news.yahoo.com/%E5%85%89%E6%B3%A2%E7%88%90%E9%AB%98%E6%BA%AB%E7%83%B9%E7%85%AE%E9%87%8B%E8%87%B4%E7%99%8C%E7%89%A9-224542465.html

xyz

戰後至一九六四年出生的一代屬「嬰兒潮」（BabyBoomers），六五年至八○年是「X世代」，八一至二千年出生的人是「Y世代」，二千年後出生至今的稱作「Z世代」。

http://news.stheadline.com/dailynews/headline_news_detail_columnist.asp?id=76677&section_name=wtt&kw=13

當電視劇主題曲變成童謠

曾經擔任小學生功課輔導班導師，

聽過女生唱林夏薇的《很想討厭你》。

有一次，在巴士下層想睡的同時，

聽到小男孩唱何雁詩的《最真心一對》，

還要重覆十幾次。

在智能手機橫行的年代，

小學生在沉重的功課壓力下，

為什麼他們還有時間看無線爛劇?

小學生能一字不漏地背誦歌詞，

這般記憶力，我望塵莫及。

BlackBerry thumb and osteoarthritis

BlackBerry thumb is a neologism that refers to a form of repetitive strain injury (RSI) caused by the frequent use of the thumbs to press buttons on PDAs, smartphones, or other mobile devices.
(searching result of Google)

Overreliance on small hand-held devices may be predisposing the current generation of electronics addicts to early development of osteoarthritis and other potentially chronic joint conditions such as “BlackBerry thumb,” some physiotherapists say.
(http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3153536/)

Erikson (developmental psychology)

Erikson's first four stages of psychosocial development

Trust vs. mistrust

Autonomy vs. shame and doubt

Initiative vs. guilt

Industry vs. inferiority

Erikson's psychosocial adolescent stage

Identity vs. role confusion

Erikson's stages in adulthood

Intimacy vs. isolation

Generativity vs. stagnation

Integrity vs. despair

warm milk and insomnia

http://www.webmd.com/sleep-disorders/living-with-insomnia-11/natural-solutions

You can put a tasty spin on your grandmother’s natural insomnia remedy by sipping warm milk before bed. Almond milk is an excellent source of calcium, which helps the brain make melatonin. Plus, warm milk may spark pleasant and relaxing memories of your mother helping you fall asleep.

global warming and air-conditioner

http://environment.nationalgeographic.com/environment/green-guide/buying-guide/air-conditioner/environmental-impact/

In burning fossil fuels such as coal to supply electricity to homes and workplaces, power plants discharge clouds of soot and other pollutants into the atmosphere. Among these are mercury and carbon dioxide (CO2). Air conditioner use in the U.S. results in an average of about 100 million tons of CO2 emissions from power plants every year.

fingerprint and burn

https://tw.answers.yahoo.com/question/index?qid=20050415000011KK05701

指紋會因燒傷而消失嗎？