歡迎閱讀《週末科學版》!我們每週五都要為你介紹可以在家中進行的有趣科學實驗。你可以在《科學日誌》中 記錄自己做了哪些活動,這樣就可以將所學的紀錄下來,比較這些結果,也許還可以利用它們來設計新的實驗!先看一下《科學日誌》的點子再開始吧。展開實驗之前,記得要獲得大人許可喔!
Today we’re going to build a viewer that focuses light in a similar manner to the human eye or a camera. When you use the viewer to look at the image of a candle, you’ll be able to see that the candle has been flipped upside down!
What you will need:
GRAPHIC: TAIPEI TIMES
An empty Pringles can
A marker
A knife that is able to cut the can
PHOTO: MICHAEL KEARNEY, TAIPEI TIMES
A thumbtack or something else that can poke a hole in the bottom of the can
Wax paper or a tissue
Tape
Aluminum foil or paper
A candle and a lighter
A dark room
► Draw a line around the Pringles can about 5cm from the bottom.
► Cut along the line.
► Use the thumbtack to put a small hole into the center of the bottom of the can. Have an adult help you with this part.
► Attach the plastic top of the can to the bottom portion of the can. If the top is clear, you’re going to need to attach a piece of wax paper or tissue to it.
► Tape the top of the can back onto the bottom portion.
► Cover the side of the can in aluminum foil or paper so that no light can get through.
► Have an adult help you light the candle. Turn off the lights in the room, and look at the candle through the top of the can. You should see an upside-down image of the candle. You might need to get the bottom of the can close to the candle to see it. Don’t forget to record what happens in your Science Journal.(michael kearney, staff writer)
今天我們要來製作一個和人類肉眼或是照相機聚光成像原理類似的觀景器,當你用這個觀景器來觀看蠟燭的影像時,你會看到一個上下顛倒的蠟燭!
所需材料︰
一個品客洋芋片空罐
一個做記號的筆
一把可以割開罐子的刀
一根圖釘或是其他可以把罐子底部戳洞的東西
蠟紙或是一張衛生紙
膠帶
鋁箔紙或是白紙
一支蠟燭或是一個打火機
一間暗房
►沿著品客罐底部往上算約五公分處劃一圈線。
►沿著畫的線裁剪。
►用圖釘在罐子底部中央戳一個小洞;請大人幫你做這個步驟。
►把罐子的塑膠�?b下半截罐口上;如果�?O透明的,你得加上一張蠟紙或是衛生紙。
►用膠帶把罐子的上半截和下半截重新固定回原樣。
►用鋁箔紙包裹住罐身,使光線無法透進罐子裡。
►請大人幫你點燃蠟燭,把房間的燈關掉,然後透過罐口觀察蠟燭,你會看到一個上下顛倒的蠟燭影像;你可能需要拉近罐底和蠟燭間的距離來看清楚蠟燭。別忘了將實驗結果記錄在《科學日誌》喔。 (翻譯︰袁星塵)
A Cameroon-flagged cargo vessel “Shunxin-39” was believed to have caused damage to an undersea cable of Taiwan telecoms operator Chunghwa Telecom on the morning of Jan. 3. It was suspected that the Chinese merchant ship, which was registered with the nationality of another country, deliberately cut off the cable by dragging the anchor over it. While the incident is still under investigation, China has a long history of using maritime tactics to sabotage Taiwan’s infrastructure. In February last year, two cables linking Taiwan to its outlying Matsu Islands were damaged within days of each other by a Chinese fishing
Have you ever dreamed of using an entire city as your training ground, effortlessly moving across walls, buildings, stairs, and obstacles? This is not just a fantasy from the movies. In cities around the world, a group of enthusiasts practice this seemingly impossible sport — “parkour.” The origins of parkour can be traced back to 20th-century France. A military officer named Georges-Hebert witnessed the incredible physical abilities of local residents in Africa, which inspired him to create the Methode Naturelle, or natural method. This training method cleverly combined climbing, running, and swimming with artificial barriers to mimic nature. Later, David Belle
A: Who else is on Billboard’s list: “The 25 greatest pop stars of the 21st Century?” B: No. 15 to 6 are: Miley Cyrus, Justin Timberlake, Nicki Minaj, Eminem, Usher, Adele, Ariana Grande, Justin Bieber, Kanye West and Britney Spears. A: I can’t believe that Adele’s only at No. 10. B: No. 5 to 1 are: Lady Gaga, Drake, Rihanna, Taylor Swift and Beyonce. A: Well, they surely deserve the honor. A: 《告示牌》雜誌的「21世紀最偉大的25位流行歌手」,還有誰上榜啊? B: 第15至6名是:麥莉希拉、大賈斯汀、妮姬米娜、阿姆、亞瑟小子、愛黛兒、亞莉安娜、小賈斯汀、肯伊威斯特、小甜甜布蘭妮。 A: 真不敢相信愛黛兒只排第10名。 B: 第5至1名是:女神卡卡、德瑞克、蕾哈娜、泰勒絲、碧昂絲。 A: 這幾位真是實至名歸! (By Eddy Chang, Taipei Times/台北時報張聖恩)
A: The 21st Century is now entering its 25th year. B: So Billboard has released a list: “The 25 greatest pop stars of the 21st Century.” A: Who are the greatest pop singers? B: No. 25 to 16 are: Katy Perry, Ed Sheeran, Bad Bunny, One Direction, Lil Wayne, Bruno Mars, BTS, The Weeknd, Shakira and Jay-Z. A: Wow, my favorite K-pop supergroup BTS has made it to the list. A: 21世紀正在邁入第25個年頭了。 B: 《告示牌》雜誌特別公布:「21世紀最偉大的25位流行歌手」。 A: 最偉大的歌手有哪些? B: 第25至16名是:凱蒂佩芮、紅髮艾德、壞痞兔、1世代、小韋恩、火星人布魯諾、防彈少年團(BTS)、威肯、夏奇拉、Jay-Z。 A: 哇,我最愛的韓流天團BTS也上榜了! (By Eddy Chang, Taipei Times/台北時報張聖恩)