Dear Readers, Welcome to a new issue of Science Focus. The end of the academic year is on the horizon. In the summer, I hope our articles will stimulate extended learning in science, not just for exams, but for fun! In this issue, we bring you two contrasting stories on food. It is up to you to decide if you prefer pizzas or asteroids for dinner. Moving onto yet more domestic issues, we consider the many ways to use baking soda and the harmful effects of dust mites when they invade your home. Do you know that dust mites are not insects? On physics, we tell the story of a lab accident that led to the invention of laser eye surgeries. We also connect with past and present HKUST physics students, who shine in different arenas. Finally, I am excited to report a record number of entries to this year’s “Science in Cha Chaan Teng Food” Writing Competition. The winning articles would surely stimulate interesting conversations in your next visit to cha chaan teng. Many congratulations to our prize winners, and I am sure they will appreciate your support and comments on Instagram. Yours faithfully, Prof. Ho Yi Mak Editor-in-Chief 親愛的讀者： 歡迎閱讀最新一期《科言》！本學年即將結束，在暑假裡希望我們 的文章能鼓勵大家探索課外的科學題材 — 不為考試，只求樂趣！ 今期我們會為大家講述兩個截然不同的食物故事：晚餐您想吃薄 餅還是小行星呢？接著關於家居的題材，我們會介紹蘇打粉的各種用 處，以及塵蟎入侵家居所帶來的有害影響。您知道塵蟎不是昆蟲這個 冷知識嗎？在物理範疇，我們會細說實驗意外導致激光矯視誕生的故 事，亦會與現在和過去的科大物理系學生對談，讓大家認識在不同地 方閃閃發亮的科大人。 最後，我很高興宣佈「茶餐廳美食的科學」寫作比賽的參加人數 再次打破歷年紀錄，得獎作品定能給您靈感，啟發您在下次到訪茶餐 廳時與親朋好友展開知識性的對話。在此恭喜各位得獎者，相信他們 會感謝大家在 Instagram 上的支持和留言。 主編 麥晧怡教授 敬上 Message from the Editor-in-Chief 主編的話 Copyright © 2025 HKUST E-mail: sciencefocus@ust.hk Homepage: https://sciencefocus.hkust.edu.hk Scientific Advisors 科學顧問 Prof. Ivan Ip 葉智皓教授 Prof. Kenward Vong 黃敬皓教授 Prof. Yi Wang 王一教授 Prof. Chi Wai Yu 余智偉教授 Editor-in-Chief 主編輯 Prof. Ho Yi Mak麥晧怡教授 Managing Editor 總編輯 Daniel Lau 劉劭行 Student Editorial Board學生編委 Editors 編輯 Sam Fan 樊潤璋 Roshni Printer Devandhira Wijaya Wangsa Helen Wong 王思齊 Jane Yang 楊靜悠 Daria Zaitseva Social Media Editors 社交媒體編輯 Audrey Chan 陳皚慧 Daisy Yeung 楊于葶 Graphic Designers 設計師 Jacky Lau 劉重信 Yerim Song 宋禮林 Winkie Wong 王穎琪 Constance Zhang 張粲璨 Contents Science Focus Issue 030, 2025 What’s Happening in Hong Kong? 香港科技活動 Innovative Pathway: Hong Kong's New Era of Industry 1 創．造未來 — 香港工業新時代 T. REX 暴龍傳奇 Science Today 今日科學 Can Asteroids Serve as a Food Source for Astronauts? 2 小行星能成為太空人的食物來源嗎？ The Accident That Led to Modern-Day Laser Corrective 6 Eye Surgeries 意外發現：現代激光矯視手術的誕生故事 Amusing World of Science 趣味科學 The Tiny Invaders in Your Home: Dust Mites 10 家居的微小入侵者：塵蟎 The Versatile Baking Soda: 13 From Baking to Graffiti Cleaning 多用途的蘇打粉：從烘焙到清除塗鴉 How to Eat a Pizza Slice Properly? 16 如何不失禮地吃薄餅？ Who’s Who 科言人語 Q&A with HKUST Physics Majors 21 讀物理系的人：與科大學子對談
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