歡迎閱讀《週日科學版》!在暑假期間,我們每週日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!
Everyone knows that bubbles are great fun. But have you ever seen an anti-bubble? This week we're going to show how to create anti-bubbles. This experiment is best done by a well-lit sink. It will be best if you read "What's the Science" before you try the experiment.
What you will need:
A large jar
A bowl
Water
Dish detergent
A chopstick (for stirring)
A pippette (bigger is better), or the pump/chamber from a syringe (get the chemist to remove and dispose of the needle for you). An empty, clean squeezy plastic bottle would work too.
Food coloring (optional)
▲ Fill the jar with cold tap water.
▲ Add several squirts of dish detergent.
▲ Stir the solution gently.
▲ Put some warm water in a bowl and add a couple of squirts of dish detergent. If you are going to use food coloring add a drop now. Stir gently.
▲ Take the pippette and squeeze out as much air as you can.
▲ Place the end of the pippette in the water in the bowl, release your grip and let it fill with water. Put the pippette aside.
▲ Very gently pour a little extra water into the jar. You don't want to make any soap bubbles! The jar should overflow.
▲ Take the pippette and hold it just above the surface of the water in the jar. Gently squeeze the pippette. Keep practicing until you are making little drops of water that skate across the surface.
▲ When you have got the knack of making the skating drops, try following the gentle squeeze which makes a skating drop with a slightly stronger squeeze. This should make the drop go under the surface to make an antibubble. Be patient, making antibubbles takes practice! (catherine Thomas, staff writer)
大家都知道泡泡很好玩,但是你曾看過「反泡泡」嗎?本週我們要教你如何製造「反泡泡」,這個實驗需要一個光線足夠的水槽,而且你最好先看過今天的「科學原理」再開始實驗唷。
所需材料︰
一個大寬口瓶
一個碗
水
洗碗精
一枝筷子(攪拌用)
一支滴管(越大越好)或注射針筒的壓頭和筒身部分(請藥劑師幫你拿掉針頭並加以丟棄)。也可用一個可以擠壓的塑膠空瓶代替。
食用色素(可有可無)
▲ 在瓶中裝滿自來水。
▲ 加入數滴洗碗精。
▲ 輕輕攪拌溶液。
▲ 在碗中裝入一些溫水,加入幾滴洗碗精。若你準備了食用色素,現在可以加入一滴,然後輕輕攪拌。
▲ 拿起滴管,盡可能將滴管中的空氣擠出。
▲ 將滴管尾端放到裝溫水的碗中,將緊握的手鬆開一點,讓滴管吸滿水後,置於一旁備用。
▲ 非常輕柔地再加一些水到瓶中,注意不要讓瓶中產生肥皂泡!讓瓶子的水滿到溢出來。
▲ 拿起滴管,將其尾端置於瓶口的水面上方。輕輕地擠壓空氣頭,多做練習,直到你擠出的小水滴能夠滑過水面。
▲ 當你抓到如何做出滑行水滴的訣竅後,試著稍微用力一點點擠壓滴管,擠出來的水滴應該會沉到水面下,如此就成功做出「反泡泡」囉!要有耐心、多練習才能製作出「反泡泡」!(翻譯:袁星塵)
Taiwanese cuisine boasts a rich culture of thick soups, with various options available at street vendors or high-end restaurants. In English, this style of dish is typically called “thick soup.” Western cuisine typically uses flour, cream, or mashed vegetables to create a creamy consistency, while in Taiwan, thick soups are made by simply incorporating food starch into the soup and creating a smooth and silky texture. Tutuo fish in thick soup is such a soup with fried tutuo fish chunks, shiitake mushrooms, bamboo shoots, and wood ears. 台灣羹品飲食文化豐富,無論是巷口小店或是高檔餐廳,都有提供羹料理。羹在英文稱作「濃湯」,西式濃湯是以麵粉、鮮奶油、蔬菜泥等達到濃稠的口感,台灣的羹湯用太白粉即能做出濃稠絲滑的湯頭。土魠魚羹就是在勾芡的羹湯中加入炸土魠魚塊、香菇、竹筍、木耳等食材的料理。 boast (v.) 擁有(令人驕傲的事物) consistency (n.) 濃稠度 chunk (n.) 厚塊,大塊 wood ear (n. ph.) 木耳 The star of this
Huge stretches of coral reef around the world are turning a ghostly white this year amid record warm ocean temperatures. On April 15, the US National Oceanic and Atmospheric Administration confirmed the world’s fourth mass global bleaching event is underway — with serious consequences for marine life and for the people and economies that rely on reefs. WHAT ARE CORALS? Corals are invertebrates that live in colonies. Their calcium carbonate secretions form hard and protective scaffolding that serves as a home to many colorful species of single-celled algae. The two organisms have evolved over millennia to work together, with corals providing shelter to algae,
A: So who were Hollywood’s highest-paid stars of 2023? B: No. 5 to No. 2 were: Matt Damon with US$43 million, Ryan Gosling with US$43 million, Tom Cruise with US$45 million, and Margot Robbie with US$59 million. A: Didn’t Tom Cruise top the list? B: Nope, Adam Sandler was No.1, having made US$73 million, which is about NT$2.34 billion. A: Wow, maybe I should change my career to acting. A: 好萊塢去年的片酬排行榜前幾名是誰? B: 第5到2名是︰麥特戴蒙、4300萬美元,雷恩葛斯林、4300萬美元,湯姆克魯斯、4500萬美元,瑪格羅比、5900萬美元。 A: 冠軍竟然不是阿湯哥? B: 是亞當山德勒、片酬7300萬美元,大約23.4億台幣! A: 天啊或許我也該轉行當演員啦。 (By Eddy Chang, Taipei Times/台北時報張聖恩)
A symbol of purity and cleanliness, the color white is the standard color for coats worn by doctors. While this has been the case for well over 100 years, it hasn’t always been so. In fact, before the late 19th century, doctors wore formal black attire, which was similar to that worn by clergymen. Black was chosen for practical reasons—it hid stains from medical procedures and presented a sense of seriousness. The major reason for the color change of the doctor’s coat was to distinguish qualified, professional doctors from those with little or no medical training. Since medical science