
What is visible light?
Reference Visible light is a type of electromagnetic radiation between the infrared and ultraviolet wavelengths, and it can be detected by cells in the human eye.
Reference Visible light is a type of electromagnetic radiation between the infrared and ultraviolet wavelengths, and it can be detected by cells in the human eye.
reference Can certain foods boost the immune system? We look at what to eat to prevent infections and stay well
Reference Ichthyosaurs, marine reptiles that resembled dolphins and could rival blue whales in size, coexisted with dinosaurs.
Reference ‘Weak like a vegan’? What evidence says about veganism for athletes may surprise you
Reference There are a few areas to consider when it comes to intermittent fasting for women. We spoke to a medical expert about how to approach it safely
Reference Indoor cycling is a firm favourite with fitness fanatics – but which muscles does spinning work? Find out with our essential guide
Reference Veganism vs vegetarianism: which is better? We compare the benefits and risks of these popular plant-based diets
Reference There are several different types of intermittent fasting. Here’s how they work, including the potential benefits and risks
BUYING GUIDE These are the best wildlife photography cameras for shooting in the Serengeti, the local zoo, and everywhere in-between.
Reference What can you eat on a vegan keto diet? Here’s a comprehensive guide to the ketogenic diet for those who don’t eat animal products
Reference The Mariana Trench is more than 7 miles (11 kilometers) deep. Although it is a toxic environment, some creatures of the deep thrive there.
Reference Are protein bars good for you? We weigh up the case for and against using a high-protein snack to build muscle, support weight loss and give you an energy boost