What's more, many of them excelled in spite of obvious obstacles like language barriers and prejudice — offering an inspiring look at the difficulty some entrepreneurs face on the road to business success. (inc.com)
Light pollution is a pretty obvious obstacle to seeing lots of stars, so if possible make sure to use your telescope out in nature, as far away from cities and artificial light as possible. (geekwrapped.com)
The most obvious obstacle that Russian women face is the unwillingness of Russian men to marry and take responsibility. (single-russian-woman.org)