古希腊哲学家、科学家和教育家亚里斯多德(Aristotle)把科学分为：
（1）理论的科学(数学、自然科学和后来被称为形而上学的第一哲学)；
（2）实践的科学(伦理学、政治学、经济学、战略学和修饰学)；
（3）创造的科学，即诗学。
http://baike.baidu.com/view/4482.htm
《科普园地》：《自然环境》终于有了一席之地
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老黄
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其实，我真的不知道科普的涵盖面到哪里。
对我来说，我也是笃信科学的，我做研究工作，也叫做“科研”；我思考问题，也是服膺于科学，不断总结经验，不要意气用事和武断。总之，不管是在家里、学校、社团，我还是服膺科学。没有科学思想就要落入迷信和无知了。
科普要什么？
应用科学？
那么环保啊，泡茶啊，烧饭做菜啊，教学啊，写文章啊，哪个不讲科学？
科学不就在我们的脑子深处么？
一切的行动，不是以科学为依据么？
再说，成立版位不难，但是要维持才难。
例如潘医生，我邀请他主持我们的医学天地，他每天一定循例来巡“病房”，看看有什么其难杂症；又如我们的守护天使，交给远在阿拉伯的雅薇，几年下来她还是守着，回答那些有志当护士的朋友的问题。
版位太多，分工太细，工作量也会随着增加。
还得仔细斟酌。
当然，如果小周有明确的概念，并且愿意承担责任，我们是可以开设的。
对我来说，我也是笃信科学的，我做研究工作，也叫做“科研”；我思考问题，也是服膺于科学，不断总结经验，不要意气用事和武断。总之，不管是在家里、学校、社团，我还是服膺科学。没有科学思想就要落入迷信和无知了。
科普要什么？
应用科学？
那么环保啊，泡茶啊，烧饭做菜啊，教学啊，写文章啊，哪个不讲科学？
科学不就在我们的脑子深处么？
一切的行动，不是以科学为依据么？
再说，成立版位不难，但是要维持才难。
例如潘医生，我邀请他主持我们的医学天地，他每天一定循例来巡“病房”，看看有什么其难杂症；又如我们的守护天使，交给远在阿拉伯的雅薇，几年下来她还是守着，回答那些有志当护士的朋友的问题。
版位太多，分工太细，工作量也会随着增加。
还得仔细斟酌。
当然，如果小周有明确的概念，并且愿意承担责任，我们是可以开设的。
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老黄
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魔镜显灵了！*小周 wrote:如果在把《生活小百科》改为《科普园地》，这块园地之下有：
医学天地、守护天使、自然环境、饮食保健、生活小百科等，这样的调动很小，但至少引进了“自然环境”，斑竹大人觉得如何？
教学方面的版位已经非常清楚明确，科研在法情研究所不是很恰当吗？
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*小周
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有了《科普园地》，但类似以下文章要“贴”在哪儿呢？
又是无奈地“贴”在《其他》主题之下吗？
A Great Year for Geminid Meteors
http://www.skyandtelescope.com/observin ... 35207.html
The strongest and most reliable meteor showers are the Perseids of August and December's Geminids. Balmy weather and summer vacations have made the Perseids well known and popular, but the Geminids are actually easier to view from mid-northern latitudes. For one thing, nights are much longer in December. And while the Perseids are best viewed just before dawn (as most showers are), you can easily get an eyeful of the Geminids during the evening hours.
This year the Moon will be nearly new when the Geminids peak on the night of December 13-14. The shower's radiant, the point in the sky from which they all seem to originate, is near Castor and Pollux. It's well up in the east by 9 or 10 p.m. and crosses near the zenith (for mid-northern observers) around 2 a.m.
The shower should peak around 5:00 Universal Time on the morning of the 14th, corresponding to midnight EST and on the 13th at 9 p.m. PST — excellent timing for North America and Western Europe. Under dark-sky conditions you might see as many as 120 medium-speed meteors per hour. (Light pollution reduces the numbers.) The shower is active to a lesser extent for at least a day or two beforehand and about one day after.
The Geminid meteor shower is extremely unusual in that its parent object isn't a comet. Instead, it's an asteroid, a chunk of rock roughly 3 miles across called Phaethon (pronounced FAY-uh-ton). How can an asteroid produce meteoroids? Nobody knows for sure. Many scientists believe that Phaethon is the core of a comet that's been baked completely dry. Maybe a smaller asteroid collided with it long ago. In any case, a ribbon of debris lines Phaethon's orbit.
Meteor watching couldn't be easier. Lie back in a reclining lawn chair, relax, and watch the sky overhead. Ideally, you want nothing but sky in your field of view — not trees, and certainly not the ground. That means that you should either lie flat on your back or recline so that you face at least 45° above the horizon. Also remember that December nights are cold at mid-northern latitudes. Normal winter clothing won't even come close to keeping you warm after you've been lying still for a couple of hours. The best solution is to use a sleeping bag. Second best is plenty of blankets over your warmest clothing. And don't forget a hat and gloves!
The arriving Geminids will cover the whole sky, so it doesn't really matter which way you're pointed. If you look straight at the radiant, you'll see meteors coming directly toward you, bright but with short trails. Look the opposite way, and you'll see lots of long meteors moving away from you.
Posted by Tony Flanders, December 8, 2009
又是无奈地“贴”在《其他》主题之下吗？
A Great Year for Geminid Meteors
http://www.skyandtelescope.com/observin ... 35207.html
The strongest and most reliable meteor showers are the Perseids of August and December's Geminids. Balmy weather and summer vacations have made the Perseids well known and popular, but the Geminids are actually easier to view from mid-northern latitudes. For one thing, nights are much longer in December. And while the Perseids are best viewed just before dawn (as most showers are), you can easily get an eyeful of the Geminids during the evening hours.
This year the Moon will be nearly new when the Geminids peak on the night of December 13-14. The shower's radiant, the point in the sky from which they all seem to originate, is near Castor and Pollux. It's well up in the east by 9 or 10 p.m. and crosses near the zenith (for mid-northern observers) around 2 a.m.
The shower should peak around 5:00 Universal Time on the morning of the 14th, corresponding to midnight EST and on the 13th at 9 p.m. PST — excellent timing for North America and Western Europe. Under dark-sky conditions you might see as many as 120 medium-speed meteors per hour. (Light pollution reduces the numbers.) The shower is active to a lesser extent for at least a day or two beforehand and about one day after.
The Geminid meteor shower is extremely unusual in that its parent object isn't a comet. Instead, it's an asteroid, a chunk of rock roughly 3 miles across called Phaethon (pronounced FAY-uh-ton). How can an asteroid produce meteoroids? Nobody knows for sure. Many scientists believe that Phaethon is the core of a comet that's been baked completely dry. Maybe a smaller asteroid collided with it long ago. In any case, a ribbon of debris lines Phaethon's orbit.
Meteor watching couldn't be easier. Lie back in a reclining lawn chair, relax, and watch the sky overhead. Ideally, you want nothing but sky in your field of view — not trees, and certainly not the ground. That means that you should either lie flat on your back or recline so that you face at least 45° above the horizon. Also remember that December nights are cold at mid-northern latitudes. Normal winter clothing won't even come close to keeping you warm after you've been lying still for a couple of hours. The best solution is to use a sleeping bag. Second best is plenty of blankets over your warmest clothing. And don't forget a hat and gloves!
The arriving Geminids will cover the whole sky, so it doesn't really matter which way you're pointed. If you look straight at the radiant, you'll see meteors coming directly toward you, bright but with short trails. Look the opposite way, and you'll see lots of long meteors moving away from you.
Posted by Tony Flanders, December 8, 2009
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*小周
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Geminid meteor shower to peak mid-December
Dec 11, 2009
http://www.astronomy2009.org/news/updates/672/
The annual Geminid meteor shower, traditionally a good performer, is expected to put on a good show for stargazers over the coming week.
The shower's peak is around 05:00 Universal Time on the morning of 14 December, but shooting stars should be visible for a night or perhaps two either side of this time. It is difficult to accurately predict how many streaks will be visible, but estimates place the figure as high as 100 to 120 per hour for observers under completely dark skies during the peak of activity. This number will drop dramatically if light pollution becomes a factor, but bright trails should still be visible.
Newbury Astronomical Society will be holding a Meteorwatch on Twitter and Facebook on Saturday 12 to Monday 14 December 2009. Everyone is welcome to join in, whether they are an astronomer or just have an interest in the night sky. The aim is to get as many people to look up as possible and maybe see meteors or even some fireballs for the first time.
Dec 11, 2009
http://www.astronomy2009.org/news/updates/672/
The annual Geminid meteor shower, traditionally a good performer, is expected to put on a good show for stargazers over the coming week.
The shower's peak is around 05:00 Universal Time on the morning of 14 December, but shooting stars should be visible for a night or perhaps two either side of this time. It is difficult to accurately predict how many streaks will be visible, but estimates place the figure as high as 100 to 120 per hour for observers under completely dark skies during the peak of activity. This number will drop dramatically if light pollution becomes a factor, but bright trails should still be visible.
Newbury Astronomical Society will be holding a Meteorwatch on Twitter and Facebook on Saturday 12 to Monday 14 December 2009. Everyone is welcome to join in, whether they are an astronomer or just have an interest in the night sky. The aim is to get as many people to look up as possible and maybe see meteors or even some fireballs for the first time.
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*小周
- Posts: 2822
- Joined: 24-07-09 Fri 11:44 am
- Location: 农林园
双子座流星雨今极盛 凌晨3时来赏星光吧！
二零零九年十二月十四日 凌晨十二时二十六分
（槟城13日讯）双子座流星雨最大爆发期在12月7日一直持续到17日，极盛期则在14日凌晨3时，满天星空闪闪，每小时流行数量最多可达到120颗左右，这是追星族观流星雨的最好时机！
流星雨最大爆发期 自7日至17日
如果你错过了上个月的狮子座流星雨，那么就别错过在2009年最后一个月的夜空，则可因双子座流星雨的到场弥补遗憾。
双子座流星雨、象限仪座流星雨、英仙座流星雨并称北半球三大流星雨，其中发生在年末的双子座流星雨不仅流量大，而且十分稳定，同时还有亮流星多、观测效果好、时间长等特点。
根据国际流星组织的预报，今年双子座流星雨“暴雨”极大可能出现于14日凌晨3时左右，每小时天顶流星数可达120颗左右。
天文专家认为，12月13日和14日晚都是观测双子座流星雨较为有利的时间，届时适逢农历十月末，黎明才会升起的残月对观测不会有影响。观测地点要找海拔较高、远离光污染的地方。
据理大天文学会顾问张汉友博士指出，12月份的双子座流星雨也是值得观测，该流星雨将从12月7日一直持续到17日，尤其是12月14日达到极盛，每小时流星数量最多可达到120颗左右。
他说，双子座流星雨非常适合观测，不但流星的速度较慢，而且明亮的流星还会留下白色的余迹。
对于这次的双子座流星雨，他认为，从12月13日（星期日）晚上8时至14日清晨6时及14日（星期一）晚上8时至15日（星期二）清晨6时都是看流星雨的好时机。
他说，相比与狮子座，双子座流星雨的观看时间比较长，约10个小时。
http://www.kwongwah.com.my/news/2009/12/14/7.html
二零零九年十二月十四日 凌晨十二时二十六分
（槟城13日讯）双子座流星雨最大爆发期在12月7日一直持续到17日，极盛期则在14日凌晨3时，满天星空闪闪，每小时流行数量最多可达到120颗左右，这是追星族观流星雨的最好时机！
流星雨最大爆发期 自7日至17日
如果你错过了上个月的狮子座流星雨，那么就别错过在2009年最后一个月的夜空，则可因双子座流星雨的到场弥补遗憾。
双子座流星雨、象限仪座流星雨、英仙座流星雨并称北半球三大流星雨，其中发生在年末的双子座流星雨不仅流量大，而且十分稳定，同时还有亮流星多、观测效果好、时间长等特点。
根据国际流星组织的预报，今年双子座流星雨“暴雨”极大可能出现于14日凌晨3时左右，每小时天顶流星数可达120颗左右。
天文专家认为，12月13日和14日晚都是观测双子座流星雨较为有利的时间，届时适逢农历十月末，黎明才会升起的残月对观测不会有影响。观测地点要找海拔较高、远离光污染的地方。
据理大天文学会顾问张汉友博士指出，12月份的双子座流星雨也是值得观测，该流星雨将从12月7日一直持续到17日，尤其是12月14日达到极盛，每小时流星数量最多可达到120颗左右。
他说，双子座流星雨非常适合观测，不但流星的速度较慢，而且明亮的流星还会留下白色的余迹。
对于这次的双子座流星雨，他认为，从12月13日（星期日）晚上8时至14日清晨6时及14日（星期一）晚上8时至15日（星期二）清晨6时都是看流星雨的好时机。
他说，相比与狮子座，双子座流星雨的观看时间比较长，约10个小时。
http://www.kwongwah.com.my/news/2009/12/14/7.html
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*小周
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浮罗山背夜赏 双子座流星雨
二零零九年十二月十四日 晚上十一时二十九分
（槟城14日讯）陪你去看流星雨，站在浮罗山背上！
槟城理科大学天文学会顾问张汉友博士说，浮罗山背海拔高，并且远离城市的灯火，是全槟最适合观赏双子座流星雨大爆发的地点。
张博士于周日晚，在理科大学的流星雨讲解会与学会会员，从晚上8时守候到隔天清晨6时，数到了84颗流星。他说，在理大这样靠近城市的地点能记录到84颗流星已属不错因为这地区不是理想的观星地点。
他说，据其他扎营在浮罗山背的天文学组织透露，有群人在那边数到200颗流星。“大部份人在凌晨1-2时左右就走，只可惜爆发的时间是在4时左右！”
他也说，14日晚上8时至隔天清晨6时也是看流星雨的好时机，每小时流星数量可达到120颗左右。他指出，在槟城西南区可以更好地欣赏流星雨，反之东北县就几乎很难看到，因此天空太亮，云朵太多。
不少民众于13日晚前往理大，希望能在听张博士讲解时一边欣赏流星雨，只可惜环境虽然一片漆黑，但天空云朵密布，只能偶尔划现1、2颗流星，一些民众也因此逗留片刻即走。
双子座流星雨相关知识
自从1862年人民注意到双子座流星群后，就一直在寻找它的母彗星。直到1983年，卫星才发现了与它有相同轨道的不是一颗彗星，而是一个石质的小行星，天文学家将它编号为3200 phaethon。双子座流星群是一年中最为稳定、最为炫丽的流星雨，峰值时每小时流量可上百颗。
人们一直争论phaethon到底是一个小行星还是彗星，它的光谱看上去像石质小行星，但轨道却很像彗星。它经过太阳旁时没有出现彗尾，却有碎块产生，形成了流星雨。
有人认为phaethon 是一个耗尽或休眠的彗星，外表面积聚了很厚的行星际尘埃，因此它有小行星的外表，却有彗星的内核
http://www.kwongwah.com.my/news/2009/12/14/148.html
二零零九年十二月十四日 晚上十一时二十九分
（槟城14日讯）陪你去看流星雨，站在浮罗山背上！
槟城理科大学天文学会顾问张汉友博士说，浮罗山背海拔高，并且远离城市的灯火，是全槟最适合观赏双子座流星雨大爆发的地点。
张博士于周日晚，在理科大学的流星雨讲解会与学会会员，从晚上8时守候到隔天清晨6时，数到了84颗流星。他说，在理大这样靠近城市的地点能记录到84颗流星已属不错因为这地区不是理想的观星地点。
他说，据其他扎营在浮罗山背的天文学组织透露，有群人在那边数到200颗流星。“大部份人在凌晨1-2时左右就走，只可惜爆发的时间是在4时左右！”
他也说，14日晚上8时至隔天清晨6时也是看流星雨的好时机，每小时流星数量可达到120颗左右。他指出，在槟城西南区可以更好地欣赏流星雨，反之东北县就几乎很难看到，因此天空太亮，云朵太多。
不少民众于13日晚前往理大，希望能在听张博士讲解时一边欣赏流星雨，只可惜环境虽然一片漆黑，但天空云朵密布，只能偶尔划现1、2颗流星，一些民众也因此逗留片刻即走。
双子座流星雨相关知识
自从1862年人民注意到双子座流星群后，就一直在寻找它的母彗星。直到1983年，卫星才发现了与它有相同轨道的不是一颗彗星，而是一个石质的小行星，天文学家将它编号为3200 phaethon。双子座流星群是一年中最为稳定、最为炫丽的流星雨，峰值时每小时流量可上百颗。
人们一直争论phaethon到底是一个小行星还是彗星，它的光谱看上去像石质小行星，但轨道却很像彗星。它经过太阳旁时没有出现彗尾，却有碎块产生，形成了流星雨。
有人认为phaethon 是一个耗尽或休眠的彗星，外表面积聚了很厚的行星际尘埃，因此它有小行星的外表，却有彗星的内核
http://www.kwongwah.com.my/news/2009/12/14/148.html