The title seems to lead on that it's possible to create beautiful charts with just one line of Ruby, when really it's 'Create beautiful charts with just one line of Ruby (if you use these libraries).'
The original title is 'Create beautiful Javascript charts with one line of Ruby', which is more accurate.
Insulin will last around 30 days unrefrigerated. Refrigerated, it lasts until the expiration date, which is years for the insulin I have.
That said, insulin is used to treat hyperglycemia, which is usually not an acute incident. "Diabetic shock" refers to hypoglycemia, in which the individual needs sugar to raise their blood sugar to normal levels.