Dear Readers, We bring you a bonus issue as you return to school after the Lunar New Year. Hopefully, you will find interesting new topics to discuss with your teachers and classmates after a well-deserved break. With smartphones being omnipresent, we provide a simple suggestion on how to prevent them from ruining your sleep. When you are not using them, how many of you charge your smartphones wirelessly? Have you wondered what wireless charging has in common with auroras, which were unusually common last year? A quick answer: magnetism. Moving on to animals, we challenge your prior knowledge on moth behavior and electric eels. Finally, we bring you the latest on our understanding of peanut allergy, and new therapeutic strategies that seem counterintuitive at first. The School of Science will be organizing a couple of all day activities in the spring. Please watch out for promotional material in our social media feeds. We hope to see you on campus in the not-too-distant future! Yours faithfully, Prof. Ho Yi Mak Editor-in-Chief 親愛的讀者： 我們很高興為你帶來農曆年假後額外出版的《科言》！希望你在 悠悠長假後，能在此找到與老師同學閒談的有趣新話題。 在智能手機變得無處不在的同時，今期我們會向大家提供避免讓 手機影響作息的小貼士。大家用完手機後會將它無線充電嗎？有想過 無線充電與上年難得廣泛出現的極光有甚麼關係？簡短答案：磁性。 然後我們會將話題轉向動物，挑戰你對飛蛾行為和電鰻的既有認知。 最後，我們會為大家介紹科學界對花生過敏的新知，以及驟聽之下少 許違反直覺的嶄新治療策略。 理學院在春季亦會舉辦多個全日活動，請密切留意我們在社交媒 體的宣傳，期望在不久將來能與大家在科大校園相遇！ 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. Man Fung Cheung 張文峰教授 Prof. Yukinori Hirano 平野恭敬教授 Prof. Adrian Po 傅凱駿教授 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 Roshni Printer Minnie Soo 蘇慧音 Helen Wong 王思齊 Jane Yang 楊靜悠 Daria Zaitseva Social Media Editors 社交媒體編輯 Zoey Tsang 曾鈺榆 Navis Wong 黃諾軒 Graphic Designers 設計師 Coby Ngai 魏敏儀 Winkie Wong 王穎琪 Constance Zhang 張粲璨 Contents Science Focus Issue 029, 2025 What’s Happening in Hong Kong? 香港科技活動 Jane Goodall – Reasons for Hope 1 珍古德 — 信有希望 The Sun, Our Living Star 太陽 — 生命之源 Science Today 今日科學 A New Explanation of “Like a Moth to a Flame” 2 「飛蛾撲火」新解 Wireless Charging Explained 5 無線充電大解構 Peanut Allergies Unshelled: 8 New Treatment and Preventive Measures 解密花生過敏：新療法與預防措施 Amusing World of Science 趣味科學 Electric Eels: Shock You in More Than One Way 11 電鰻：水中的多重震撼 How to Regain Your Sleep from Your Smartphone? 14 如何從智能手機搶回睡眠時間？ Science Behind Auroras 17 極光的科學
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