The normal, or resting, pulse rate in adolescence can range between 50 to 60 beats per minute to as high as 90 to 100. When active, the maximum heart rate for a teen â the highest amount his heart can safely beat per minute â is about 200 to 205. You can obtain the exact number by subtracting your teenâs age from 220.
About. 1  Smithsonian Earth is a commercial-free streaming service that offers unlimited access to original documentaries, short series, and Nature Scenes. Shot in stunning 4K Ultra HD resolution by filmmakers around the world, its programs will bring you closer than ever before to nature's most fascinating animals and wildest locations.
Wireshark is free. Wireshark is considered one of the top open source projects in the world. It costs you nothing to download it from wireshark.org, install it and start your network trace file collection today. This is much better than collecting Star Wars or Star Trek memorabilia (and better for your social life). 7. Get geeky.