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)
A: The 23rd Taiwan Pride parade will be marching again on Saturday, Oct. 25. B: Will the parade kick off from Taipei City Hall Plaza as usual? A: Yup, and there will be over 110 LGBT-themed booths at the Rainbow Festival in the plaza. B: The organizer is reportedly teaming up with Japanese, South Korean and other international groups. A: So we are likely to see more foreign visitors from across the world. Hopefully, this year’s parade can smash the record of 200,000 marchers set in 2019. A: 第 23 屆台灣同志遊行本週六即將登場。 B: 遊行還是從台北市政府前廣場出發嗎? A: 對,廣場「彩虹市集」還有超過
A: As the Taiwan Pride parade enters its 23rd year, the nation also celebrates the sixth anniversary of the legalization of same-sex marriage. B: However, a poll showed that support for same-sex marriage slightly dropped to 54.3 percent from last year’s 56.5 percent. A: The government is wavering on whether to extend the Assisted Reproduction Act to same-sex couples, leading to public doubts. B: Since US President Donald Trump took office in January, his oppression of Diversity, Equity and Inclusion (DEI) programs has also frustrated the global LGBT community. A: Let’s join the parade in Taipei tomorrow to
California will phase out certain ultra-processed foods from school meals over the next decade under a first-in-the-nation law signed on Oct. 8 by Gov. Gavin Newsom. The law seeks to define ultra-processed foods, the often super-tasty products typically full of sugar, salt and unhealthy fats. The legislation requires the state’s Department of Public Health to adopt rules by mid-2028 defining “ultra-processed foods of concern” and “restricted school foods.” Schools have to start phasing out those foods by July 2029, and districts will be barred from selling them for breakfast or lunch by July 2035. Vendors will be banned from providing the “foods
Have you ever bought a new smartphone and suddenly found yourself dissatisfied with your perfectly fine headphones? Before long, you’ve purchased premium wireless earbuds, a protective case and a fast-charging station. What begins as a single acquisition snowballs into a shopping spree—this is the Diderot effect in action. Named after the 18th-century French philosopher Denis Diderot, the Diderot effect originates from an essay he wrote. In it, he recounted receiving a luxurious robe as a gift. As lovely as it was, the robe clashed with the rest of his humble belongings. One by one, he replaced his possessions to match the