此套特別為力學課程設計的羅馬拱橋積木，集教育及玩意一身。
只要你們小心把積木如圖所示砌成一道拱橋，由於力學支撐關係，拱橋能承重一位小童的重量或成年人用手大力按下拱橋亦不會倒塌。
羅馬拱橋亦可以在課外活動或科學展覽時作競技遊戲，看誰能最快砌出拱橋。
This working model of the famous Roman Arch is an excellent study in Physics and Engineering. When correctly assembled, it will support the weight of a boy.
l 23 hardwood blocks in 6 distinct shape
l Pre-drilled wooden buttress.
l 4 screws for assembling buttress.
l Manual with full-scale template of arch.
Item No : JHL 733
遺忘已久的哈哈鏡有再面世, 給大人小朋友無比歡欣! 此哈哈鏡是輕巧設計, 只有2尺高, 尺半闊, 讓學生了解到光的反射定律.
Made of durable acrylic plastic frame and high quality mirror, high reflecting surface & long-lasting coating. Light weight and small size easily for carrying and demonstrating anywhere.
Dimension : 610 x 460 x 130mm H x L x Thickness
Item no : HAHA336
超視浮影器是一種給人超視覺感覺的產品, 你眼見浮影器上的3D立體影像是"real image", 迫真度達99%, 但伸手觸摸它時會嚇你一驚, 因為什麼也觸不到. 這是一件使你的學生發出尖叫的有趣儀器!
Operation : You are seeing an image formed by two concave mirrors facing one another. The object is placed at the center of the bottom mirror. The curvature of the mirrors is such that the object is at the focal point of the top mirror. The image produced by this apparatus is known as a real image, because the light that forms it actually passes through the location of the image. Dimension : Diameter 230mm, height 75mm, weight 11 ounces, Material : high polished acrylic , the apparatus is no assembly , no power supply required.
Item No : M 3288
只要小心把黑色四方磁力盒調校好至水平, 配合小陀螺加速工具去使陀螺在黑盒上旋轉, 慢慢升高陀螺, 它便在空中神奇地旋轉, 非常精彩
快來試試你的身手吧 !! 看誰學得怏轉得最久 ?
Dimension : Black magnetic box 125 x 125 x 20mm
浮磁尺寸 : 33 x 44 dia. x H
Supplied with a set of accessories including small ring mass
Item no : JP 118-081
魚洗是一個其內壁有魚或龍等浮雕的倣古青銅盆, 盆的上緣焊有二個摩擦用的把手. 當用雙手手心分別在盆的兩個把手上來回摩擦時, 盆中水面邊緣將有對稱的四處不斷往上噴射大量水滴, 高達30cm以上, 如噴泉, 並發出尖響, 蔚為奇觀.魚洗是中國古代科技一大發明, 早在漢代出現. 據文獻記載, 在我國明代, 魚洗曾是皇親國戚.才子佳人的玩藝之物. 其作用原理是盆壁上產生共嗚駐波, 因而現時魚洗是一種很好的教學儀器和科學館(香港科學館)展品. 而其玩藝富有情趣及能活動筋骨, 所以它是中老年和女性鍛鍊身體的最佳器材. 附說明書及實驗方法，讓老師詳細解釋其原理．
Dimension : Upper Diameter of basin 40cm , Bottom diameter of basin 22cm, Height 18cm (including handle)
參考資料 : 物理大詞典 人文出版社 台灣1979年10月初版第1342頁 香港中學會考物理ETV
Item no : JHL 621
