The vulnerabilities applied to open Wi-Fi, as well as networks secured by the WEP and WPS standards. But the problem isnât simply a matter of networks lacking sufficient protection. Most end users are unaware of the risks involved in using public Wi-Fi. They treat it as just another network, and use it to send sensitive information via email or connect to online banking or e-commerce services.
half-century - a period of 50 years. period, period of time, time period - an amount of time; a time period of 30 years; hastened the period of time of his recovery; Picasso's blue period. century - a period of 100 years. Translations.
Half of 50% is 25%, so you would have 25% Carbon-14 and 75% Nitrogen-14. This is what your read out said, so your fossil has undergone two half-lives. Now that you know how many half-lives have passed for your fossil, you need to multiply your number of half-lives by how many years are in one half-life. This gives you an age of 2 x 5730 = 11,460 years. Your fossil is of an organism (maybe human) that died 11,460 years ago.