百度试题 结果1 题目 Thomas Edison's important inventions include: long-lasting light bulbs, telephone, phonograph, and the motion picture camera called "Kinetograph”.A.对B.错 相关知识点: 试题来源: 解析 B 反馈 收藏
Who invented long-lasting light bulbs?The Wright brothers.Thomas Edison.Margaret Knight. 相关知识点: 试题来源: 解析 Thomas Edison. 这个问题询问的是持久耐用的电灯泡的发明者。莱特兄弟以发明飞机闻名,玛格丽特·奈特是一位多产的发明家,但他们都与电灯泡的发明无关。托马斯·爱迪生在1879年发明了第一种实用...
UV light is a type of electromagnetic radiation that is emitted anywhere between 10 to 400 nanometers (nm) on the electromagnetic spectrum. These are shorter wavelengths than visible light, in between visible light and x-rays. All electromagnetic radiation is considered light, although the human e...
The cost savings don’t stop there. LED lights have an impressive lifespan, lasting up to 25 times longer than incandescent bulbs. That means fewer trips to the store to buy replacements. You can bid farewell to the frustrating dance of changing light bulbs every few months. Sit back, rel...
Switching to LED light bulbs is hugely worthwhile. Why? Because this light source is renowned for being incredibly long-lasting. LED light bulbs now have an average lifespan of up to 50,000 hours. Here are just a few more reasons why you should invest in energy efficient LED today. LED ...
Snap-lock sockets prevent twisting and pulling of the lamps, keeping the bulbs securely in place 2.5-volt, 3000-hour bulbs provide long-lasting illumination for your holiday decor Includes 2 replacement bulbs and fuses for easy maintenance UL listed for saf...
Light Source Halogen Bulbs Length of One Part Within 16m Once Forming Without Slip Joint Surface Treatment Galvanized with Powder-Coated Thickness 2.5mm-20mm Painting Color (Ral)Color Card or Refer to Client′s Requirement CRI (Ra>) 75 Input Voltage(V) 220 Application Road Transport ...
US$21.00-22.00 / Piece Bright and Long-Lasting LED Bulb Light for Every Room US$16.00-17.00 / Piece Portable Solar Generator with Fast Charging Technology for Outdoor Adventures US$16.00-17.00 / Piece Versatile Solar Kit System for Home and Outdoor Use...
ensuring that your environment is always perfectly lit. The long-lasting LED bulbs, with a lifespan of over 50,000 hours, provide consistent and reliable illumination, reducing the need for frequent replacements. **Adaptable and User-Friendly** The Long Solid Wood Pendant Lamp is designed to be...