Amara sez, "Using a CD to demonstrate light spectra is a simple way to show to anyone the basic principles of light. I learned of that trick from my colleague, but here in this web site we have a collection of toys like the CD trick to make at home to demonstrate simple science principles. Science principles that might seem at first, too complicated to understand, but in fact, are simple enough for kids."
Our spectroscope has three main parts. There is a slit made from two razor blades, a diffraction grating made from a CD disk, and a viewing port, made from a paper tube.
To make sure that all three parts are lined up properly, we will use the CD disk as a measuring device, and mark the spots where the slit and the viewing port will go.
Set the CD disk on top of the box, about a half inch from the left edge, and close to the box's bottom, as shown in the photo. Use a pen to trace the circle inside the CD disk onto the box. This mark shows us where the paper tube will go.
The office I work in is full of things old people buy to make themselves feel young again. I can honestly say that our awesome new toy, The Swagtron T3 Hoverboard, makes me feel very, very old. I’ll explain why later. Swagtron T3 Pros There’s no way to overcharge the battery and that means no […]
One thing that’s consistent among amateur pool players is that they unknowingly stand up during their shots. Just as in golf, pool players need to keep their heads down and stay still after they shoot in order to hit straight. The DIGICUE helps keep shots consistent by letting you know every time you’ve had extra […]
A leaked memo from Apple CEO Tim Cook to his staff explaining why he met with Donald Trump — a guy who called Apple traitors for refusing to defeat their own security — explains the rationale: “tax reform.”
With countless applications for modern life, artificial intelligence (AI) is one of the most in-demand fields of study in tech. Beyond modelling human decision making processes and learning abilities, AI can be used to analyze massive volumes of data and create complex interactive systems.This Machine Learning & AI for Business Bundle made mastering these concepts possible for […]
Computer hacking isn’t just something happening to the DNC. Major software companies need white-hat hackers to ensure the security of their products and users, and I came across a Computer Hacker Professional Certification Package that conveniently teaches those advanced IT techniques online.This course package will prepare you for various computer security certification exams with over 60 hours […]
One of the best ways to progress a career in project management is through earning recognized certifications. These certifications carry significant clout and don’t require expensive tuition or student loans. This Ultimate Project Management Certification Bundle is a great example of an affordable way to get ahead. It includes training for 9 certifications including PMP, […]