It’s really proximity that makes the sun so special to Earth (along with the fact that we wouldn’t be here if it weren’t so close). So, how close is the sun? And how much space does it take to hold 1.3 million Earths? And while we’re at it: How does the sun emit energy...
Ultraviolet (UV) light damages the cornea and the retina. Good sunglasses can eliminate UV rays completely. Sunglasses provide protection from intense light. When the eye receives too much light, it naturally closes the iris. Once it has closed the iris as far as it can, the next step is ...
Every 1.5 millionths of a second, the sun releases more energy than all humans consume in an entire year according toNASA Space Place.Here, we explore how hot each layer of the sun is and why the temperatures vary so much. Related:When will the sun die? Where does the sun's heat com...
The sun emits thermal radiation that travels toward Earth. When solar radiation reaches thick clouds in Earth's atmosphere, those clouds can reflect the radiation out into space, keeping the planet cool. But when the radiation does reach Earth's surface, the planet itself reflects solar radiation...
Should I be worried about smart meter radiation? Smart meters give off radiofrequency (RF) waves (aka low-energy radiation) and some people are concerned about smart meters because the RF waves they produce are the same kind as those given off by cell phones and Wi-Fi devices. According to...
You are familiar with the adaptive radiation of Darwin's finches that resulted in species with different beak shapes. But did you know that this affected their songs as well? Larger-beaked species have simpler songs as their muscles simply cannot move their beaks fast enough to produce the ...
Following the war, scientists like Rachel Carson began warning of the consequences of chemical pesticides, while doctors abroad reported mysterious illnesses associated with nuclear radiation.456Many point to this era as the genesis of the ecological movement, which sought to preserve ecosystems and reso...
However, the cost might increase due to your increase in age. Below, see some of her other demographics that life insurance underwriters use to determine her rates. Diagnosed at age 50 Stage 0 breast cancer Treatment involved surgery, radiation, and chemotherapy No lymph node involvement, no...
Though much of the research conducted by NASA and other space agencies is important to the space programs, the impact of space farming has many real-life applications for Earth. The main benefit and purpose of learning how to farm in space is to enable long-term space exploration -- it's...
Let's begin at the core of the process: How does sunlight, also known as electromagnetic radiation, become heat? Contents Cooking With Light The Benefits of Solar Cooking Cooking With Light Using stoves and ovens, we can cook foods like meat, vegetables, beans, rice, bre...