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！
It’s difficult to believe it today, but when the world’s first skyscraper was built in 1885, it had only 10 floors. Today, Taipei 101 is the world’s tallest habitable building, standing at 509m. Modern skyscrapers must be able to withstand the forces of gravity, the weather, impacts and earthquakes.
To test a building’s stability in the face of earthquakes, engineers use a shake table to simulate a tremor. In today’s experiment, you will build a shake table, and use it to test the stability of some different structures.
What you will need: Four ping pong balls, some card, a ruler, two large rubber bands, a flat Lego plate and some Lego building blocks.
PHOTO: EPA
(JOHN PHILLIPS, STAFF WRITER)
現在我們可能很難相信，一八八五年全世界第一座摩天大樓完工時，只有十層樓高。高五百Ｏ九公尺的台北一Ｏ一是現今全世界最高的商辦大樓。現代的摩天大樓必須要能抵抗重力、惡劣天氣、各種撞擊和地震。
工程師利用地震模擬測試平台來測試建築物耐震的穩定性。今天的實驗中，你將自製一個地震測試平台，並用它來測試不同構造體的穩定性。
實驗所需：四顆乒乓球、一些硬紙板、一把尺、兩條大橡皮筋、一塊樂高平板底座和幾塊樂高積木。
（翻譯：袁星塵）
BUILDING THE SHAKE TABLE 自製地震測試平台
Step 1: Cut the card into two 30cm x 30cm squares.
Step 2: Put the pieces of card on top of each other.
Step 3: Wrap a rubber band around opposite ends of the card.
Step 4: Wedge a ping pong ball between the card in each corner. The shake table is now complete.
步驟一：把硬紙板裁成兩個邊長三十公分的正方形。
步驟二：將兩片硬紙板疊在一起。
步驟三：硬紙板兩端各用一條橡皮筋圈套住。
步驟四：在兩片硬紙板中間的四個角各塞入一顆乒乓球，地震測試平台就完成了。
TEST THE STRUCTURES 測試構造體
Step 1: Build several Lego towers of different heights. The base should be the same shape and size for each one.
Step 2: Slide the Lego mounting plate underneath the rubber bands. Attach one of your structures to the mounting plate.
Step 3: Twist the top piece of card a few centimeters, and measure the distance from the starting point. This distance is known as the displacement.
Step 4: When you release the card, the structure will either collapse or remain standing. If the structure didn’t collapse, repeat step three with progressively larger displacements until it does.
Step 5: Make a note of the displacement that caused the collapse. Repeat the process from step two using a taller structure, remembering to use the same base shape. Test the collapse point of five different sized structures.
步驟一：用樂高積木堆疊幾座不同高度的構造體，每座基底的形狀、尺寸都要一樣。
步驟二：將樂高平板底座小心地塞放到橡皮筋下方，然後將做好的其中一個構造體堆疊到平板底座上。
步驟三：把上面那片紙板稍微偏轉幾公分，然後測量偏轉後距原點的距離，這段距離就是我們熟知的斷層位移。
步驟四：當你鬆手放開紙板，上面的構造體可能會倒塌或保持矗立。假使這個構造體沒有倒塌，重複步驟三，逐步增加偏轉的距離，直到它倒塌為止。
步驟五：記下倒塌時的位移距離。然後拿更高的構造體重複自步驟二以下的動作，記得基底的形狀要保持一致。測試五種不同尺寸構造體的倒塌臨界點。
SUGGESTED EXTENSIONS 建議延伸實驗
• Record you results in a graph to try and predict the level of displacement that will induce collapse in very high structures.
• Instead of changing the height of the structure, try changing the shape and design of the base. Identify which base designs are the most stable.
• Instead of Lego blocks, use a different building material.
•將實驗結果記錄成圖表，並試著預測看看會造成極高構造體倒塌的位移程度。
•在不改變構造體高度的情況下，試著改變其基底的形狀和設計，找出哪種基底設計最穩固。
•用不同的建構元素取代樂高積木。
Despite advancements in bicycle security, millions of bicycles are stolen every year. A revolutionary bicycle lock, called “SKUNKLOCK,” takes a proactive approach to deterring thieves. __1__, SKUNKLOCK releases a noxious chemical that could cause would-be thieves to vomit and effectively discourages them from continuing their efforts to steal the bicycle. While conventional locks can be defeated by determined thieves using specialized tools, SKUNKLOCK’s dual approach of physical resistance and chemical deterrence is highly effective, making it a formidable __2__ against bike theft. The U-lock is made of high-tensile carbon steel, which can withstand attempts to break it using brute
Due to the Lunar New Year holiday, from Sunday, Jan. 26, through Sunday, Feb. 2, there will be no Bilingual Pages. The paper returns to its usual format on Monday, Feb. 3, when Bilingual Pages will also be resumed.
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