1 00:00:00,080 --> 00:00:02,080 Speaker 1: This episode of brain Stuff is brought to you by 2 00:00:02,120 --> 00:00:05,519 Speaker 1: Linda dot Com. Linda dot Com offers thousands of engaging, 3 00:00:05,559 --> 00:00:08,760 Speaker 1: easy to follow video tutorials talket by industry experts to 4 00:00:08,800 --> 00:00:12,440 Speaker 1: help you learn software, creative and business skills. Membership starts 5 00:00:12,440 --> 00:00:16,000 Speaker 1: at twenty five a month and provides unlimited seven access. 6 00:00:16,120 --> 00:00:18,720 Speaker 1: Try Linda dot Com free for seven days by visiting 7 00:00:18,840 --> 00:00:22,960 Speaker 1: Linda dot com slash brain Stuff. Welcome to brain Stuff 8 00:00:23,079 --> 00:00:34,120 Speaker 1: from how Stuff works dot com where smart Happens. Hi 9 00:00:34,159 --> 00:00:37,840 Speaker 1: Am Marshall Brain with today's question, what is making my 10 00:00:38,000 --> 00:00:42,920 Speaker 1: backyard sparkle at night? This past weekend. I was cleaning 11 00:00:42,960 --> 00:00:46,240 Speaker 1: my desk and I found my headlight lamp. This is 12 00:00:46,280 --> 00:00:49,640 Speaker 1: one of those little led flashlights with a strap so 13 00:00:49,680 --> 00:00:52,360 Speaker 1: that you can wear it on your forehead. You see 14 00:00:52,400 --> 00:00:56,560 Speaker 1: them in Home Depot and Lows and Amazon in places 15 00:00:56,600 --> 00:00:59,760 Speaker 1: like that. They cost about fifteen dollars. So you know 16 00:00:59,840 --> 00:01:02,480 Speaker 1: how once you find or buy something like that, you 17 00:01:02,520 --> 00:01:05,480 Speaker 1: want to try it out. I'm the same way. So 18 00:01:05,560 --> 00:01:09,520 Speaker 1: I strapped my headlight lamp on. I called the dog 19 00:01:09,600 --> 00:01:11,760 Speaker 1: and we went out in the backyard to look around. 20 00:01:12,240 --> 00:01:15,679 Speaker 1: I've been doing this big yard project, so there were 21 00:01:15,760 --> 00:01:18,920 Speaker 1: some piles of dirt in the backyard. I turned on 22 00:01:19,080 --> 00:01:22,200 Speaker 1: my light and I spun my head around and just 23 00:01:22,280 --> 00:01:26,319 Speaker 1: looked around the backyard with it, and the strangest thing happened. 24 00:01:26,720 --> 00:01:31,240 Speaker 1: The backyard sparkled. The pile of dirt that was over 25 00:01:31,280 --> 00:01:34,399 Speaker 1: to my left had all these reflections coming off of it, 26 00:01:34,520 --> 00:01:37,600 Speaker 1: like it was covered in little diamonds or something like that. 27 00:01:38,200 --> 00:01:41,319 Speaker 1: I stood and faced the pile and looked at it, 28 00:01:41,360 --> 00:01:45,959 Speaker 1: and it was still sparkling. There were dozens of spots 29 00:01:46,120 --> 00:01:50,160 Speaker 1: of brightly reflected light. What in the world could that be. 30 00:01:51,000 --> 00:01:54,880 Speaker 1: I assumed it was mica or quartz crystals or something 31 00:01:55,000 --> 00:01:57,400 Speaker 1: mixed in with the clay of the soil and the 32 00:01:57,400 --> 00:02:00,840 Speaker 1: pile of dirt. So I walked up closer to investigate. 33 00:02:01,400 --> 00:02:06,360 Speaker 1: And everyone I investigated was a wolf spider. What I 34 00:02:06,440 --> 00:02:10,840 Speaker 1: was seeing was the light being reflected off the eyes 35 00:02:11,120 --> 00:02:16,960 Speaker 1: of wolf spiders. Yes, wolf spiders, thousands of them, thousands 36 00:02:17,040 --> 00:02:19,320 Speaker 1: of thousands. You look around the backyard and they are 37 00:02:19,480 --> 00:02:22,639 Speaker 1: absolutely everywhere, And if you think about it, there could 38 00:02:22,680 --> 00:02:25,080 Speaker 1: actually be twice that many, because there could be an 39 00:02:25,120 --> 00:02:28,920 Speaker 1: equal number of spiders facing the opposite direction. That's a 40 00:02:29,000 --> 00:02:31,640 Speaker 1: lot of spiders. So I want to make sure that 41 00:02:31,720 --> 00:02:35,600 Speaker 1: I'm not hallucinating about this effect or the number of spiders. 42 00:02:35,960 --> 00:02:38,280 Speaker 1: I grab Lee and I take her outside and I 43 00:02:38,320 --> 00:02:40,959 Speaker 1: put the headlight on her head. What do you see? 44 00:02:41,000 --> 00:02:44,560 Speaker 1: I asked her. I've not told her a thing. You've 45 00:02:44,600 --> 00:02:49,280 Speaker 1: discovered diamonds, she asks, She is seeing the same reflections. 46 00:02:49,600 --> 00:02:52,040 Speaker 1: You don't see it with a normal flashlight. I guess 47 00:02:52,040 --> 00:02:54,440 Speaker 1: that the light has to be close to your eyes 48 00:02:54,520 --> 00:02:57,320 Speaker 1: to get the right angle of reflection so that you 49 00:02:57,320 --> 00:03:00,120 Speaker 1: can actually see the spiders. I tell her to go 50 00:03:00,160 --> 00:03:03,960 Speaker 1: and investigate one of the reflections. She is not particularly 51 00:03:04,000 --> 00:03:06,120 Speaker 1: happy with me when she finds out what's at the 52 00:03:06,160 --> 00:03:09,640 Speaker 1: other end. Then I show the kids one by one. 53 00:03:10,040 --> 00:03:12,040 Speaker 1: They all see it too, and we went on a 54 00:03:12,080 --> 00:03:15,720 Speaker 1: spider hunt together. They were far more excited than Lee was. 55 00:03:16,480 --> 00:03:19,120 Speaker 1: Of course, this isn't a new discovery. As soon as 56 00:03:19,160 --> 00:03:21,720 Speaker 1: you go to Google and plug the idea in, you 57 00:03:21,760 --> 00:03:26,400 Speaker 1: can find lots of pages with titles like headlighting for spiders. 58 00:03:26,639 --> 00:03:29,919 Speaker 1: Apparently people have been seeing wolf spiders this way ever 59 00:03:30,000 --> 00:03:33,120 Speaker 1: since we figured out how to strap lights onto our heads. 60 00:03:33,720 --> 00:03:36,000 Speaker 1: You might want to try it one night. I live 61 00:03:36,040 --> 00:03:40,520 Speaker 1: in North Carolina. If your location is anything like North Carolina, 62 00:03:40,800 --> 00:03:44,160 Speaker 1: there may be thousands of spiders out right now staring 63 00:03:44,200 --> 00:03:48,040 Speaker 1: at you. 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