歡迎閱讀《週日科學版》!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!
Ripening fruit 水果的成熟
Have you ever noticed that fruit left in a bowl with ripe
bananas spoils quickly? This week we're going to find out why.
PHOTO: CATHERINE THOMAS, TAIPEI TIMES
What you will need:
Thirteen unripe tomatoes (green)
Four ripe bananas
Three unripe bananas (green)
Ziplock bags
Paper bags
Three bowls
Sticky labels (or paper and sticky tape)
▲ As you make up each bag or bowl, label it so that you can keep track.
▲ Place a tomato and a ripe banana in a ziplock bag. Seal the bag. Make up another bag exactly the same.
▲ Place a tomato and a ripe banana in a paper bag. Seal the bag. Make up another bag exactly the same.
▲ Place a tomato and a ripe banana in a bowl. Make up another bowl exactly the same.
▲ Place a tomato and an unripe banana each in a sealed ziplock bag, a sealed paper bag, and a bowl. Make up another two bags and a bowl exactly the same.
▲ Place an unripe tomato in a ziplock bag, a paper bag and a bowl. These are your control tomatoes. Seal the bags.
▲ Put one of each type of bag or bowl in the fridge.
Leave the others on the counter.
▲ After a few hours check on each bag and bowl and note any changes that have occurred.
▲ Let the fruit sit for two days, checking it every few hours. If you like you can eat each fruit as it becomes ripe, so that you don't waste it. Do you think the fruit tastes different depending on how it was ripened?(catherine Thomas, staff writer)
你曾經注意到若碗中放了成熟的香蕉,其他水果也會很快跟著腐壞嗎?本週我們將探索原因何在。
所需材料︰
十三顆未成熟的蕃茄(綠色)
四根成熟的香蕉
三根未成熟的香蕉(綠色)
密封袋
紙袋
三個大碗
標籤貼紙(或是紙和膠帶)
▲ 當你在準備密封袋和碗時,將它們個別貼上標籤以利記錄。
▲ 將一顆蕃茄和一根成熟的香蕉放入一個密封袋中後密封,再另外準備完全相同的一份。
▲ 將一顆蕃茄和一根成熟的香蕉放入一個紙袋中封好,再準備一份完全相同的。
▲ 將一顆蕃茄和一根成熟的香蕉放入一個碗中,然後再準備一份完全相同的。
▲ 將一顆蕃茄和一根未成熟的香蕉做為一組,各放一份至可封口的密封袋、可封口的紙袋和碗中。接著再另外各別準備一份完全相同的。
▲ 分別密封袋、紙袋和碗中放入一顆未成熟的蕃茄,這三份是你的控制組。將袋子封口。
▲ 將每種分類的碗或袋子各放一份至冰箱中。剩下的則留在流理台上。
▲ 經過數小時後,檢查每一個碗和袋子,並記錄下變化的情形。
▲ 將水果放置兩天,每隔幾個小時就檢查一下。水果熟了的話可以吃掉,這樣比較不會浪費。你覺得用不同方式熟成的水果口感也不同嗎? (翻譯︰袁星塵)
In an effort to fight phone scams, British mobile phone company O2 has introduced Daisy, an AI designed to engage phone con artists in time-wasting conversations. Daisy is portrayed as a kindly British granny, exploiting scammers’ tendency to target the elderly. Her voice, based on a real grandmother’s for authenticity, adds to her credibility in the role. “O2” has distributed several dedicated phone numbers online to direct scammers to Daisy instead of actual customers. When Daisy receives a call, she translates the scammers’ spoken words into text and then responds to them accordingly through a text-to-speech system. Remarkably, Daisy
Bilingual Story is a fictionalized account. 雙語故事部分內容純屬虛構。 Emma had reviewed 41 resumes that morning. While the ATS screened out 288 unqualified, she screened for AI slop. She could spot it a mile away. She muttered AI buzzwords like curses under her breath. “Team player.” “Results-driven.” “Stakeholder alignment.” “Leveraging core competencies.” Each resume reeked of AI modeling: a cemetery of cliches, tombstones of personality. AI wasn’t just changing hiring. It was draining the humanity from it. Then she found it: a plain PDF cover letter. No template. No design flourishes. The first line read: “I once tried to automate my
Every May 1, Hawaii comes alive with Lei Day, a festival celebrating the rich culture and spirit of the islands. Initiated in 1927 by the poet Don Blanding, Lei Day began as a tribute to the Hawaiian custom of making and wearing leis. The idea was quickly adopted and officially recognized as a holiday in 1929, and leis have since become a symbol of local pride and cultural preservation. In Hawaiian culture, leis are more than decorative garlands made from flowers, shells or feathers. For Hawaiians, giving a lei is as natural as saying “aloha.” It shows love and
1. 他走出門,左右看一下,就過了馬路。 ˇ He walked outside, looked left and right, and crossed the road. χ He walked outside and looked left and right, crossed the road. 註︰並列連接詞 and 在這句中連接三個述語。一般的結構是 x, y, and z。x and y and z 是加強語氣的結構,x and y, z 則不可以。 2. 他們知道自己的弱點以及如何趕上其他競爭者。 ˇ They saw where their weak points lay and how they could catch up with the other competitors. χ They saw where their weak points lay and how to catch up with the other competitors. 註:and 一般連接同等成分,結構相等的單詞、片語或子句。誤句中 and 的前面是子句,後面是不定詞片語,不能用 and 連接,必須把不定詞片語改為子句,and 前後的結構才相等。 3. 她坐上計程車,直接到機場。 ˇ She took a cab, which took her straight to the airport. ˇ She took a cab and it took her straight