Eyes on the skin. In the teamâs first experiment, the scientists were looking to see whether UV light instigated a calcium signaling response. They found nothing. But guessing that the skin might sense light like the eyes do, they added retinal, a co-factor of opsin receptors including rhodopsin.
Economy shipping takes 1 to 10 business days within the United States and 11 to 20 business days for international. Exact time depends on how far the package must travel. Standard international shipping takes 5 to 10 days.
Most important facts about production and shipping: 1  Current production time is 2 to 3 business days for most products. Some may take longer. 2  Most orders will be shipped within that time frame and oftentimes sooner. 3  Some orders can take longer to produce for various reasons, but that is not the norm.