4月30日的Scientific American应用程序分析

A subscription to Scientific American magazines is available through Google Play for $49.99 annually or $5.99 monthly and is renewed automatically at the end of the subscription term, until cancelled. Individual issues are $6.99 each. Payment for all purchases will be charged to your Google Play account. For more information, please visit Google Play Terms and Conditions: https://play.google.com/intl/en-us_us/about/play-terms/index.html Founded in 1845, Scientific American provides expert insights on the most important and awe-inspiring advances in science and technology. With news and commentary about current events and in-depth features by experts, including more than 200 Nobel Prize-winning scientists, Scientific American is the essential guide to the modern world. Support Science Journalism. Become a Subscriber. Scientific American Customer Service: Email: help@sciam.com