One candle visible at 30 miles



How Far Can the Human Eye See?

The Earth’s surface curves out of sight at a distance of 3.1 miles, or 5 kilometers. But our visual acuity extends far beyond the horizon. If Earth were flat, or if you were standing atop a mountain surveying a larger-than-usual patch of the planet, you could perceive bright lights hundreds of miles distant. On a dark night, you could even see a candle flame flickering up to 30 mi. (48 km) away.
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As things get darker out there, let’s keep our little candles burning. ~ TD

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Steven Broiles
5 years ago

How does evolution explain the complexity of the human eye? IT CAN’T. If the complexity and subtlety of the human eye is not indicative of an Intelligence necessary to design it, then there is no sense talking to those people!

Dr. Eowyn
Dr. Eowyn
5 years ago
Reply to  Steven Broiles

The human eye is made up of 30 parts: 1. vitreous body 2. ora serrata 3. ciliary muscle 4. ciliary zonules 5. Schlemm’s canal 6. pupil 7. anterior chamber 8. cornea 9. iris 10. lens cortex 11. lens nucleus 12. ciliary process 13. conjunctiva 14. inferior oblique muscle 15. inferior rectus muscle 16. medial rectus muscle 17. retinal arteries and veins 18. optic disc 19. dura mater 20. central retinal artery 21. central retinal vein 22. optic nerve 23. vorticose vein 24. bulbar sheath 25. macula 26. fovea 27. sclera 28. choroid 29. superior rectus muscle 30. retina Each of… Read more »

5 years ago
Reply to  Steven Broiles

I know Steven….”those” people believe that you can rip up a dictionary…or better yet…millions of alphabetic letters, throw them up in the air..and the Great American Novel comes down all in one piece…….ready to read…. .NOT! What kind of “logic” informs them??????

5 years ago

wow, the picture of this eye looks like a storm coming! beautiful!