What's both edible, and capable of sending you an email to let you know there's explosives nearby? Spinach! Well, spinach with some nanotechnology embedded within it. Learn how Popeye's favorite veggie is involved in the field of plant nanobionics.

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Sources:
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http://www.nature.com/nmat/journal/vaop/ncurrent/full/nmat4771.html
https://www.eurekalert.org/pub_releases/2016-10/tes-mbc102416.php
http://press.endocrine.org/doi/10.1210/jc.2016-2141
https://www.plannedparenthood.org/learn/birth-control/condom/how-effective-are-condoms
http://www.pamf.org/teen/sex/birthcontrol/malecontraceptive.html
www.livestrong.com/article/62774-sperm-produced/
https://www.plannedparenthood.org/learn/birth-control/birth-control-pill
https://www.ncbi.nlm.nih.gov/pubmedhealth/behindtheheadlines/news/2016-10-28-male-contraceptive-jab-effective-but-side-effects-are-common/

Image Sources:
https://commons.wikimedia.org/wiki/File:Contub_v1_0_08_2.png
https://es.m.wikipedia.org/wiki/Archivo:Leaf_spongy_mesophyll.jpg
https://commons.wikimedia.org/wiki/File:Primary_and_secondary_cotton_roots.jpg
http://www.cdc.gov/reproductivehealth/contraception/index.htm