a. Purpose of the Research Evidence has shown that people are becoming more aware of environmental protection than in the past. Not only has the government made every effort to implement the policies of environmental protection, but Hong Kong citizens are also more willing to cooperate and help out. However, when it comes to conservation of energy and reduction of wastage, many people still regard it as a burden and they just take it lightly. In fact, environmental protection can be achieved in a convenient and simple way. We can easily put in practice in our daily lives. Because of this, we would like to introduce our invention - “shock Induced battery” by using our knowledge of Physics. b. Procedures The “Shock Induced battery” makes use of locomotion of human bodies to generate electricity. The electrical current generated from the specially designed generator will pass through the diode bridges, which adjust the current to one direction. This enables the electrical energy to be stored in the capacitor. This energy will be released when the battery is correctly connected to a circuit with a switch and a resistor. One of the features of the battery is that it is portable. It is mainly used to charge up electrical devices. But it is hoped that it will replace non-chargeable cells one day, and can directly be used in any electrical devices. In fact, our ultimate goal is to reduce the wastage of materials for making the cells, and to solve the problem of disposal of these cells. c. Data The induced a.c. voltage is full-wave rectified by the diode bridge. d. Conclusions In a word, we are trying to provide a chance for people to put environmental protection in practice, so as to raise the awareness of people about environmental protection. After all, high-tech products only solve the power-saving problem to a certain extent, but it is the awareness and the initiatives of the public which matter. We are convinced that environmental protection brings fun to your daily lives, as you will find practices on environmental protection both convenient and simple.

本組改良第50屆國中組化學科「愈熱愈涼快」的實驗。除了沿用電解池的導電性會隨著溫度的改變的原理外，有以下改良： 1.電壓由15伏特提升至110伏特，以應用於一般電器使用。 2.將直流電改為交流電，並以銅棒對硫酸銅溶液通電，溶液濃度與電極因此皆不會減少，能長期使用。 3.利用溫度改變能使氣體熱漲冷縮的特性，製作氣體溫控升降儀，加大溫控效能，並達到自動化斷電目標。 4.最後，同時串聯四台風扇，以模擬教室環境用電，增加實用性與發展可能。

吊白塊是一種在現切水果中常見的食品添加物，它可使剛切的水果不易被氧化，並同時具有漂白的效果，但此種添加物會對人體造成許多疾病。本研究針對吊白塊作嘗試性的初級檢驗，選用一般常見的氧化劑和染料，自行研發簡易的檢驗方法，且進一步製作安定性佳且攜帶方便的試紙。本實驗結果發現，由衛生局提供的「藍吊試劑」本身不甚穩定，且顏色變化不明顯；在自製檢驗試劑方面，效果最佳的是過錳酸鉀，濃度可測至0.0005M，且反應相當快速，唯試液容易與水果表面的Fe(II)離子反應；孔雀綠和晶紅酸等染料效果亦佳，且變色相當明顯，但反應時間較長。Rongalit is a bleaching agent commonly used as a food additive. It can prevent fresh fruits to be oxidized (without color-changed), especially when they were cut for sale. However, as for this additive, it is not good on health and is necessary to be detected. The test-paper currently used, the so-called “blue-test paper”, can be obtained from the Department of Health (Taipei). However, its stability is poor; the color change is not clear when it reacts with Rongalit. For this reason, I developed simple methods for detecting Rongalit by using various oxidizers and dyes. A test-paper, with better stability and easily for carry, was successfully developed. The findings show that the use of KMnO4 on the homemade test-paper provides the best result. The reaction time is short and the limit of detection can be improved to 5 × 10-4 M. The color changes were also clear when malachite green and fuchsin acid were used, but the reaction times were longer.

NO.58-03 2019 JUN | 科學研習期刊目錄 本期專題 生物多樣性 千變萬化—蝦類多樣性 | 楊倩惠 海鮮的迷思 | 廖運志 現世恐龍樂園 | 蕭世輝 教學現場 素養導向課程設計之國中生物科神經系統教案實例 | 郭淑妙 素養導向運用於國小生物相關之教學 | 潘怡吟 簡易減量潔手裝置 | 牛奇源 摩斯密碼氣壓機 | 李柏翰 科學新知 日本的天然災害 | 陳正改 鏡頭下的臺灣氣象 | 鄭明典 特約專欄 森棚教官的數學題-誤打誤撞 | 游森棚 分享書，談科學：用兒童文學探索「尺度」概念 | 劉淑雯 5分鐘完成的STEM簡易科學實驗－自製炸彈包 | 蘇子珺、黃琴扉 科教館GO好玩 看看「SHERO．我的故事」主題書展 | 蘇懿禎 總召集人的話 人類生存所需的氣候、飲食、醫藥和土壤等，都極度依賴健全的生物多樣性(biodiversity)。為了增進對生物多樣化課題的理解與覺察，聯合國宣布每年5月22日是國際生物多樣性日(International Day for Biological Diversity, IDB)。今(2019)年IDB的主題是「我們的生物多樣性、我們的食物、我們的健康」(Our Biodiversity, Our Food, Our Health)。本期特別以「生物多樣性」為專題。 「本期專題」單元共有三篇文章，〈千變萬化—蝦類多樣性〉一文介紹綺麗的蝦類世界。〈海鮮的迷思〉一文列舉幾個常見的海鮮迷思加以釐清，以增進讀者對海鮮食物的了解，期能讓海鮮的選擇更永續。〈現世恐龍樂園〉一文指出現今的鳥類，就是源起於兩億三千萬年前就出現的恐龍祖先，且特別介紹臺灣的鳥類生物多樣性，並呼籲大家做好環境保護以減免對這種多樣性的影響。 「教學現場」單元刊登四篇文章，〈素養導向課程設計之國中生物科神經系統教案實例〉一文分享分享國中生物科主題為「生物的構造與功能」的素養導向課程設計。〈素養導向運用於國小生物相關之教學〉一文分享透過9節課的教案設計，以「如何適齡適性呈現生活周遭事物與自然環境，誘導學生的關懷心，以增進學習動機」的教學經驗。〈簡易減量潔手裝置〉一文透過教學實驗建議大家兩種節水洗手方法，第二種方法使用簡易減量潔手裝置。〈摩斯密碼氣壓機〉一文介紹微弱傳輸氣壓波動微擾訊號的預實驗以及摩斯密碼氣壓機的實作設計與製作。 「科學新知」單元刊登兩篇文章。〈日本的天然災害〉一文介紹日本的自然環境和天然災害(如地震、海嘯、火山爆發、豪雨和颱風等)特質。〈鏡頭下的臺灣氣象〉一文選出網友在作者臉書上分享的7張天氣照片加以說明，讓讀者更能感受臺灣氣象的豐富面貌。 「特約專欄」單元刊登三篇文章，〈誤打誤撞〉一文拋出找把加法算式頭尾兩數值併起來恰好是此一算式之和的加法算式有那些的問題，供讀者自主探索或發想科展題目。〈分享書，談科學：用兒童文學探索「尺度」概念〉一文介紹和說明《分享書，談科學：用兒童文學探索科學概念》一書中提到的尺度(scale)概念。〈5分鐘完成的STEM簡易科學實驗--自製炸彈包〉一文則分享以提升學生解決問題能力為目標，透過生活中的情境、將簡單易取得的器材帶入教學及實作的教學經驗。 本期「科教館GO好玩」單元刊登〈看看「SHERO．我的故事」主題書展〉一文，介紹正在科教館9樓圖書館內展出到2019年年底的以女性為主題的書展，歡迎參觀! 總召編輯委員 - 李隆盛 關於本刊 出版單位：國立臺灣科學教育館 發行人：陳雪玉 總召集人：李隆盛 編輯委員： 物理科吳仲卿/陳耀榮/李柏翰/盧玉玲 | 化學科古建國/許良榮/王伯昌/林如章/周金城 | 生物科王美芬/蕭世輝/陳建志/郭淑妙 | 地球科學許民陽/王郁軒/李文禮 科技科張玉山/汪殿杰/林育沖/趙珩宇 | 數學科李源順/鄧家駿/溫世展/張宮明 | 跨領域學科李名揚/連信仲 | 特約專欄 游森棚/黃琴扉/劉淑雯 策劃：曾聰邦 主編：錢康偉 本月專題特約主編：王美芬 編輯：吳郡怡 網頁設計編輯：施曉恬/陳璽君 投稿規範請來信詢問：article@mail.ntsec.gov.tw

流行病學資料顯示，近年來口腔癌發生率明顯增加。本研究之目的是探討口腔黏膜細胞微核發生頻率及彗星分析法之基因傷害指標是否與菸、酒、檳榔暴露有關，以及是否可以看到菸、酒、檳榔之交互作用。 研究對象為桃園地區山地鄉之民眾，利用問卷收集個人之菸、酒、檳榔及干擾因子之暴露資料，再採集樣本之口腔黏膜細胞及血液樣本，進行基因傷害評估。 結果顯示，口腔黏膜之微核發生率與檳榔之暴露相關性最大，可以解釋12.6％；然而，彗星尾部動量和尾部長度則以香菸暴露解釋力最大；同時，檳榔與香菸的基因傷害交互作用似乎存在。因此我們認為，口腔黏膜細胞之微核發生頻率對於檳榔暴露者應是不錯的基因傷害指標，而香菸暴露則以彗星分析法之指標較為敏感。 ;Epidemiological studies showed that the incidence of oral cancer increased significantly in recent years. The purpose of this study is to evaluate the genotoxicity of cigarette smoke, alcohol and betel quid use as well as the. interaction effect between these three risk factors. The study subjects were selected from residents lived in a mountain area of Tao-Yuan county. We used questionnaire as a tool of exposure measurement. The exfoliated oral buccal cells and blood samples were collected for the assay of micronucleus frequency (MNF) and comet assay. We find that there are higher MNF in smokers, alcohol drinkers, and betel quid users compared with nonusers. However, a significant difference can not be found because of small sample size. The relationship between MNF and three risk factors was strongest in betel quid use, however, for smokers the parameters in comet assay were more sensitive than MNF. There is a tendency of additive effect between cigarette, alcohol and betel quid although without statistical significance. Advanced statistical analysis is suggested to find stronger evidence in the genotoxicity biomarker.

本研究主要探討電解液之帶電離子在磁場中的動力行為。為了觀察更細微的結果，共歷經三代裝置改良，第一代用五個電錶及探針測量徑向橫截面上五點的電壓，所測數值電壓有下降趨勢但不足以呈現細微部份的變化。第二代利用電壓感應線、搭配平移台及電腦，呈現連續性且經數位處理之結果，出現電壓升降的電荷堆積現象。第三代為了更精確，將裝置結構及器材上改良。觀察到在磁場作用下有旋轉現象，改變電極極性時，會有順逆時鐘方向的改變，且只有電解質液才會有旋轉。更可以使用帶電質點受到勞倫茲力F=q(VxB)理論解釋。且旋轉中的電解液比沒有旋轉時，析出的銅量少，反應溫度升高快，電解液內電壓分布因電荷堆積造成的高低起伏。經過改變磁場強度、電解液濃度，不銅價離子電解液，結果濃度大、磁場大、離子數較多者，呈現電壓分布圖快速變化，彎曲大。This thesis report is the study of combining the moving charged particles under the perpendicular magnetic field. By using the theory of moving and electrolysis, the electrolytic liquid will swirl through the particular arrangement of the horizontal cylinders enclosed in a circular enclosure container and strong magnet. Then, the researcher observes the force situation of the charge in the magnetic field and discusses the differences of the electrolysis effect, which is experimented under the different conditions, such as, in the magnetic field or no-magnetic field. Furthermore, the researchers discuss the conduction of voltage spreading and interfering when the moving electrons under different position of two electrodes and under the different interaction of electric field and the magnetic field. And the changing reason as follow: （1）the magnetic field strength. （2）the concentration of the electrolytic liquid. （3）electrolytic solution. When the experiment group compared with the comparison group, the result may provide fundamental understanding as follow：（1） The researchers can find out the charged particles rotating in the magnetic field. And it proved the moving condition when the moving electrons in the magnetic field. （2） This experiment can be used in judging the solution, which I electrolytes, or not. （3） This experiment also proved for Arrhenius’s ionic theory. （4） The researchers found out the quantity of Cuprun decrease, the rise in temperature and the reducing in voltage.

Synthesis of Polymer Material and its Decomposing Processes Because plastic cannot be decomposed naturally by itself, therefore, additives needed to be added to facile the decomposing process. Let us choose one common material: thermoformed Nylon 66. During the formation process, addition of glucose powder and monosaccharide polymerized will result in yielding the products of methyl cellulose, soluble starch and agar powder. Observe whether adding additives would allow changes to occur structurally, or would the elasticity be improved when exist in a linear state, or even it would form a better pH resistance property. According to the experiments, when Nylon 66 contains methyl cellulose, it can sustain the highest tension. Its coefficient of elasticity is 2 times as large as the original one. In terms of the data, we can also observe that when Nylon66 contains soluble starch, it has the lowest ability to sustain tension. Besides, it has the lowest coefficient of elasticity. And when Nylon 66 contains cellulose, it has the highest rate in the process of decomposing.As we look at the surface of polymers under 400 diameters, we can observe that the Nylon 66 with agar powder has some filiferous substance. But we have not confirmed what the matter is. 由於塑膠不能在自然情況下順利分解，所以我們在塑膠中添加其他成分使塑膠可以較易 分解。我們選定常見的塑膠—熱塑性的耐綸-66。在聚合物的製作過程中添加葡萄糖、澱粉、 洋菜粉末以及甲基纖維素，並觀察加入添加物的塑膠在結構上是否有變化？其塑膠在線型時 之張力是否有增強？耐酸鹼性是否有變化？由實驗結果我們可以得知含有甲基纖維素之耐綸 -66 所能承受之張力強度最高，且其彈性係數也比無添加物之耐綸-66 高出近2 倍；而含可溶 性澱粉之耐綸-66 所能承受之張力最小，且彈性係數也最低。此外，進行生物分解的實驗可發 現，含葡萄糖的耐綸-66 分解的速率最快。使用400 倍的光學顯微鏡可發現含有洋菜粉末的耐 綸-66 表面與其他耐綸-66 複合材料差異較大，值得進一步研究。

Dipterocarps coming from Southeast Asia comprise about 53% of the world’s\r total exports of tropical hardwood products. However, the supply of dipterocarps is\r rapidly declining. The government is currently embarking on the establishment of\r dipterocarp plantations and encourages inoculation with ectomycorrhizal fungi to\r improve seedling growth and survival in degraded sites. Anisoptera thurifera (Blanco)\r Blume and Shorea guiso (Blanco) Blume rooted cuttings were inoculated with\r mycelial beads containing either Pisolithus PTG, Pisolithus H6394, or Astreus sp.\r Pisolithus PTG was collected from Acacia mangium stand in Malaysia, Pisolithus\r H6394 from Eucalyptus trees growing in a heavy metal contaminated area in New\r Caledonia, Astreus sp obtained from dipterocarp forest in Mt. Makiling, Philippines.\r The results showed that Astreus sp gave the highest root colonization (38%), height\r increment (86%), fine root (51%), coarse root (27%), shoot (43%) and total dry\r weight (40%) of A. thurifera over the control treatment. Astreus – inoculated plants\r had the highest shoot P uptake (41%) while PTG inoculated ones obtained the highest\r fine root P uptake (0.273 mg/root). The uninoculated plants had the lowest height\r increment, dry weight, and P uptake. In S. guiso, Pisolithus H6394, gave the highest\r increment (100%). Data were only obtained from four months of nursery experiments,\r hence, a longer nursery and field experiments should be conducted to achieve a\r complete evaluation of the physiological functions of ectomycorrhizal associations.\r Moreover, a wide range of ectomycorrhizal fungi associated with dipterocarps should\r be incorporated for selection of host compatibility.

本研究目的主要在瞭解昆蟲的複眼(compound eyes)結構，比較晝行性與夜行性昆蟲複眼之差異，探討其視覺遠近和複眼結構的關連，及進一步觀察其對不同波長光源反應的差異。本實驗使用反射式及倒立式顯微鏡來觀察複眼及其小眼的結構，及觀察其成像情形，並使用攝影式接觸分析儀與放大管來探討視覺遠近和小眼表面曲率之關連，另外在暗室利用不同波長的光源照射蝴蝶以觀察其反應。實驗結果顯示複眼是由數千至數萬個小眼組成，小眼表面曲率半徑隨選用物種在25.3μm 至117.6μm 之間，蜻蜓複眼上半部和下半部小眼曲率半徑分別為30.6μm、117.6μm，印證了蜻蜓複眼上看遠下看近的說法，也發現蝦子小眼是正方形，其他實驗物種則皆為六邊形，而蝴蝶對光的反應程度則是隨波長漸增而遞減。The main purpose of this study is to understand the structure of the compound eye of insects, to compare the difference between the diurnal insect’s compound eye (apposition eye) and that of the nocturnal insect (superposition eye), to explore the relationship between the vision and the structure of the compound eye, and to observe the eye’s reaction to the different light wave length. In this study, a microscope (OLYMPUS BX51M) and an inverted microscope (OLYMPUS 1X71) were used to observe the structure of the compound eye and its ommatidia, as well as the resulting image. A contact angle measuring instrument (Dataphyscis OCA 20) and a microscope (Mitutoyo NAVITAR) were used to determine the connection between the vision distance and the facet curvature of ommatidia. The butterfly’s reaction to the light source with different wave length was also observed in a darkroom. It was observed that the compound eye of insects is composed of more than a thousand ommatidia. Among the subject insects, the facet curvature radius of their ommatidia ranged from 25.3μm to 117.6μm. The radius of the top and bottom half of a dragonfly is 30.6μm and 117.6μm. It confirms a scientific finding that dragonfly’s top compound eye focuses farther than the bottom half. The facet of each ommatidium observed is hexagonal in insects compared with the square shape found in the eye structure of shrimp. Regarding the reaction to light of the butterfly eye; the reaction decreased when the light wave length increased.

Tic tac toe (井字棋)是大家童年時期常玩的小遊戲，本研究希望能以人工智慧的概念編寫出能在遊戲中立於不敗之地的程式，並將程式寫入LEGO EV3主機，利用LEGO積木打造出一台能與人對下井字棋的機器人。在研究的過程中先將井字棋遊戲可能出現的棋路一一列出，再從中找出中最適合的應對棋路，並在遊戲過程中利用顏色辨識零件去偵測對手下棋的位置。經過測試，它的確能夠在遊戲過程中立於不敗之地。未來希望能針對更加複雜的賽局，例如象棋、五子棋或4*4、5*5的方格等，設計出能從人手中輕易取勝的機器人。

Water is very vital in our lives as we cannot live without it. However our world is now facing a serious problem. Owing to the increasing population, water resources are scarce. In recent years, we can see that droughts have been affecting millions of people around the globe. In the meantime, people in developed countries have been wasting huge amount of water for flushing the toilet. According to the US Environmental Protection Agency, 30% of household water goes toward flushing the toilet. Countries like China, US, Canada and UK are still using fresh water in flushing, consuming 190 million L of fresh water every day, not to mention the energy needed in pumping the water. In fact, it is not necessary to use so much water to flush away substances like tissue, hair, urine etc. The water we used is far more than we need. However, as we cannot control how much water is used when we flush, all water in the cistern is flushed away. Realizing the seriousness of water shortage and wastage in flushing, we tried to invent a device to conserve water by controlling the amount of flushing water used. Firstly, we study the principle of normal flushing system so as to understand why flushing cannot be controlled. Then, we tried to think of ways to control flushing. We have tried various methods and materials. After the 6-month testing and modification, we successfully invented Fast Fabulous Flush. It is a device which can be fit into existing cistern to conserve water. With our invention, users can control the amount of water flushed according to needs, so as not to waste unnecessary water. Our invention costs a low price which is no more than 2 US dollar. Also, it can be fit into existing cistern within 3 minutes with simple installation process. Most importantly, flushing water can be conserved effectively. It is estimated that around 200L of water can be saved per household every day.

SMS.Link-INTERACTIVE is a system that facilitates the exchange\r of information between a central computer server and a remote cellular\r phone user, and allows remote modification of data in the computer\r through SMS. A cellular phone with a GSM modem is connected to the\r computer physically via a data cable. A program in the computer is\r notified whenever the cellular phone receives new messages, processes\r new messages by first authenticating the user’s identity, then checks for\r the information being asked for, as well as the changes that the user wants\r to be done. Information is then retrieved from a database in the computer\r and the appropriate changes are made. A message containing the\r requested information and a list of changes done is then sent to the user\r through SMS.\r Tests were made to get the speed of the system. Accuracy tests were\r done to determine if the program was able to ascertain the validity of the\r user correctly, return the requested data, and change the specified\r information.\r Using this system, doctors can access a patient’s data and change\r prescriptions; teachers can correct errors in grades; clubhouse personnel\r can add memberships; all these from a remote location by sending a SMS\r request to the cellular phone connected to the server.