We are scientists from the Society of Vertebrate Paleontology coming to you from our annual meeting in Salt Lake City. We study fossils. Ask Us Anything! |
- We are scientists from the Society of Vertebrate Paleontology coming to you from our annual meeting in Salt Lake City. We study fossils. Ask Us Anything!
- Are organelles inside cells actually colored?
- How can there be a speed difference at joining rivers at an Y-shape?
- Why do beavers build dams?
- What happens when a sound wave encounters a vacuum?
- How do chromosomes survive in the cytoplasm during mitosis?
- DNA replication - is the leading strand always built complementary to either the coding strand or the template strand?
- Is there a series that always ends up inconclusive no matter which test you use?
- If there is an absolute zero, is there a finite rate at which a given object's temperature can be lowered?
- What gives the Squid nebula its stretched oval shape?
- Would earphones work in space?
- Is there any instance of an exoplanet orbiting three separate stars, or is this not even possible?
- How do computers keep track of time?
| Posted: 29 Oct 2016 06:05 AM PDT Hello AskScience! We are members of the Society of Vertebrate Paleontology. We study fossil fish, mammals, amphibians, and reptiles — anything with a backbone! Our research includes how these organisms lived, how they were affected by environmental change like a changing climate, how they're related, and much more. You can learn more about SVP in this video or follow us on Twitter @SVP_vertpaleo. We're at our 76th Annual Meeting in Salt Lake City, Utah. Ask us your vertebrate paleontology questions! We'll be here to answer your questions at 10am Mountain Time/12pm Eastern! [link] [comments]  |
| Are organelles inside cells actually colored? Posted: 28 Oct 2016 08:27 AM PDT In cell models you can see the organelles colored in certain ways. Are they actually colored like this, or are they colored that way so we can differentiate them. [link] [comments]  |
| How can there be a speed difference at joining rivers at an Y-shape? Posted: 29 Oct 2016 04:55 AM PDT Im in a discussion with my colleagues on how water flows, we are working on an inland barge. We are moving upstream from point C moving to point A. My colleague says that when we cross from C to A we suddenly move quicker because there is less water coming from A. How is this possible? If it flows faster wouldn't it "bump" into the water from B and then slowdown? [link] [comments]  |
| Posted: 28 Oct 2016 09:21 PM PDT First: I'm unaware of an "ask an animal expert" subreddit, so I hope this still fits here. Second: The most common answer as discovered by google searching suggests that beavers are seeking calmer waters to build their home. This doesn't sound like the end of the story to me. Surely if a beaver simply wants calmer water, they'd seek calmer water. I feel like there has to be more to the behavior, so I'm curious. [link] [comments]  |
| What happens when a sound wave encounters a vacuum? Posted: 28 Oct 2016 11:42 AM PDT We know that sound doesn't travel through a vacuum, but something has to happen to the energy of the sound wave when it hits a vacuum. Does it bounce back in the opposite direction? If so, what prevents spacecraft from constantly ringing like a bell? I'm guessing the sound energy will eventually become heat, but doesn't this take some time? [link] [comments]  |
| How do chromosomes survive in the cytoplasm during mitosis? Posted: 28 Oct 2016 01:50 PM PDT I've been taught that DNA cannot survive in the cytoplasm which is part of why transcription must occur in order to send information out of the nucleus and why RNA must be given a poly-A tail before leaving the nucleus. During mitosis however, the nucleus dissolves but the chromosomes survive enzymatic degradation. Just wondering what is done to the chromosomes to allow this? [link] [comments]  |
| Posted: 28 Oct 2016 03:19 PM PDT So let's say we have a strand of DNA, which is going to be replicated. Helicase begins to unwind one side of the DNA. You won't see both ends being unwound. I assume this means that replication will always start on one particular end of a DNA strand. Which I suspect means that the leading strand will always be complementary to one particular strand of DNA every time (which will be either the coding or the template strand). I can't find any source for this at all. Is the leading strand always complementary to the coding strand, or is the leading strand always complementary to the template strand? [link] [comments]  |
| Is there a series that always ends up inconclusive no matter which test you use? Posted: 28 Oct 2016 12:21 PM PDT |
| Posted: 28 Oct 2016 05:24 PM PDT My understanding is that the colder a cooling medium is, the faster heat will transfer to that object, so I'm wondering if we can calculate the maximum rate of cooling as a physical limit or whether it's defined by the two substances properties? [link] [comments]  |
| What gives the Squid nebula its stretched oval shape? Posted: 28 Oct 2016 06:02 AM PDT Hey today on r/space they were showing this picture made buy Rolf Geissinger of the Squid Nebula: http://apod.nasa.gov/apod/image/1610/Sh2-129+OU4+vdB140_Rolf-Geissinger.jpg What gives the nebula this shape? To my untrained eye it looks like the red cloud is some kind of super nova remnant. kind of like the other one around the star at the bottom left-middle of the picture. Then there is the central blue-white cloud. Is it a disc like object seen edge on? Is it one bright star at the center or one bright one and multiple others? [link] [comments]  |
| Would earphones work in space? Posted: 28 Oct 2016 05:10 AM PDT You are wearing earphones connected to a mobile while being in space without a spacesuit, let's imagine you would not freeze to death or suffocate in seconds. Would you be able to hear any sound at all, or feel any vibrations in your ears? [link] [comments]  |
| Is there any instance of an exoplanet orbiting three separate stars, or is this not even possible? Posted: 28 Oct 2016 06:36 AM PDT |
| How do computers keep track of time? Posted: 28 Oct 2016 12:41 AM PDT That little boring fact about computers has always fascinated me, how can electrons keep track of time? Stuff like, how clock cycles are managed, how hertz are measured and throttled through every piece of hardware and interface data delivery. It blows my mind. What piece of hardware is measuring the time? How is that done? [link] [comments]  |
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