歡迎閱讀《週末科學版》！我們每週六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記錄下來，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！
In the words of Thomas Edison, “genius is 1% inspiration and 99% perspiration.” And he should know. Edison conducted hundreds, if not thousands, of experiments before finally coming up with a commercially viable light bulb. Although Edison cannot be credited with inventing the light bulb, it was his singular focus that took light bulbs out of the laboratory and into the home. (JOHN PHILLIPS, STAFF WRITER)
In today’s experiments you are going to build a homemade light bulb, and learn about some of the factors that affect the luminosity of a light bulb.
What you will need: a jar with a screw-on lid, a six-volt battery, about one meter of copper wire, a 4cm piece of thin iron wire, a hammer, a nail and a match.
PHOTO: AFP
湯瑪士．愛迪生有句名言：「天才是一分天份，加上九十九分努力」；對此他應該深有同感。愛迪生歷經了就算沒有上千次，也有好幾百次的實驗後，才研製出具有商業價值的燈泡。雖然他不能算是（鎢絲）燈泡的發明人，但他絕對是讓燈泡從實驗室走入一般家庭的重大功臣
（翻譯：袁星塵）
今天的實驗中，你將自己動手做一個燈泡，並認識一些會影響燈泡亮度的因素。
實驗所需：一個有旋轉蓋的瓶子，一顆6V電池、約一公尺長的銅線、四公分長的細鐵絲、一把鐵鎚、一根釘子和一根火柴。
METHODOLOGY
Step 1: Cut the copper wire into two equal lengths. Strip the plastic coating from the ends of the wire to reveal the metal.
Step 2: Make two holes in the jar lid by hammering the nail through it.
Step 3: Thread a piece of copper wire through each hole. You should thread the wire from the outside of the lid, so that about 3cm hangs inside the jar when closed.
Step 4: Tie the iron wire to the loose ends of the copper wire, then screw the lid on the jar. From now on we will refer to the iron wire as the filament.
Step 5: Connect the other ends of the wires to the battery terminals.
Step 6: Observe the filament. Does anything happen? With luck the filament will begin to glow.
步驟一：將銅線剪成等長的兩段。將銅線兩端的塑膠外皮去除，露出裡面的金屬部份。
步驟二：用鐵鎚和釘子在蓋子上打兩個洞。
步驟三：將兩段銅線分別從外向內，穿過蓋子上的兩個洞；蓋上蓋子後，罐內要留下約三公分長的銅線。
步驟四：將鐵絲綁在兩條銅線於蓋下的那端。現在起，這條鐵絲就是我們的燈絲。
步驟五：將銅線的另一端分別接到電池的正負兩極。
步驟六：觀察燈絲。會發生什麼變化？幸運的話，燈絲會開始發亮。
VARIATIONS
Edison painstakingly made tiny variations to his design until he finally hit on something that worked. Now it’s your turn to do the same.
1. Vary the length of the filament.
2. Vary the voltage of the battery.
3. Vary the type of filament.
4. Create a vacuum in the jar by lighting a match then screwing on the lid. When it burns out it will burn up the oxygen in the jar. Edison created a vacuum in his bulbs to prevent blackening.
Record your results and note which variation produced the highest luminosity.
愛迪生花了許多心血一點一點改變實驗變因，才終於找到可行的組合。現在，你也要來如法炮製一番。
1. 改變燈絲的長度。
2. 改變電池的電壓（伏特數）。
3. 改變燈絲的材質。
4. 在罐內置入一根點燃的火柴，然後蓋上蓋子讓，罐內成為真空的狀態。當火柴燒盡時，它也會耗盡罐內的氧氣。愛迪生將燈泡內抽成真空，是為了防止燈泡變黑。
將結果記錄下來，並註明哪種變因下的燈泡最亮。
A: Apart from the musical Sunset Boulevard, Japanese pop diva Ayumi Hamasaki is also touring Taiwan after a 17-year wait. She’s holding two concerts starting tonight. B: Ayu has the most No. 1 hits of any Japanese solo artist, with 33 total. A: “Time” magazine even crowned her as “The Empress of Pop.” B: She staged shows in Taipei back in 2007 and 2008, causing an “Ayu fever” across Taiwan. A: Unfortunately, the singer has been deaf in her left ear since 2008, and is gradually losing hearing in her right ear. I’m so excited to see her singing in Taipei again. A: 除了音樂劇《日落大道》，日本歌后濱崎步睽違17年，今晚起在台北熱唱兩場。
Denmark’s state-run postal service, PostNord, announced that it would cease letter deliveries at the end of 2025 due to the impact of digitalization. As 95% of its residents now use the Digital Post service, Denmark has seen a 90% decline in letter volumes since 2000, from 1.4 billion to 110 million last year. On top of that, the Postal Act of 2024 removes the government’s obligation to provide universal mail service and puts an end to postal exemptions from value-added tax, raising the cost of a single letter to 29 Danish krone (US$4.20). As a result, PostNord is switching
A: After touring Taipei, the play Life of Pi is now heading to Taichung. You wanna go? B: Did you forget? We’re going to Taipei this weekend to see the musical Sunset Boulevard and go to Japanese pop diva Ayumi Hamasaki’s concert. A: Oh yeah, that’s right. The classic composed by Andrew Lloyd Webber is touring Taiwan for the first time. B: I heard that it’s adapted from a 1950 film with the same title. A: And the show will feature legendary soprano Sarah Brightman, who is finally returning to the musical stage after 30 years. We can’t miss it. A: 在台北巡演後，戲劇《少年Pi的奇幻漂流》本週起將移師台中。要去嗎？
Although sending you an SMS (Short Message Service) verification code provides some security, many apps now use code-generating apps and two-factor authentication instead. But more recently, passkeys now use a biometric approach to logging in. Biometrics can offer an even more secure alternative. Following this trend, Google is reportedly planning to replace SMS verification codes with “QR code” scanning. SMS codes are currently used to verify user identity and prevent fraudsters from creating fake Gmail accounts to distribute spam. However, these codes present several challenges. They can be phished through suspicious links, and users may not always have access
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