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Thursday, August 20, 2020

Do mosquitos hide in predictable locations?

Do mosquitos hide in predictable locations?


Do mosquitos hide in predictable locations?

Posted: 19 Aug 2020 11:18 PM PDT

I've noticed that if there's a mosquito in the room, and I swat at it but fail to kill it, it usually seems to disappear for about 30 minutes before it tries to come after me again.

I'm curious how programmed or predictable mosquito behaviors are. For example, does it actually have a behavior like "if swatted at, lay low for 30 minutes before trying again?" Or am I just imagining the correlation? Second, if they do have a "hide" behavior, do they choose predictable locations? Do they prefer corners of the room? Areas with less light (do they even use light in making their decisions)? Do they go low to the ground? High on the ceiling? Do they use air currents and calmness to choose a spot?

It seems like I usually find mosquitos hiding out in a shadowy corner near the floor of the room, which is infuriating because if it would just hang out in the open against the white, well-lit wall, it would be a lot easier to hunt them down. This correlation could definitely just be my own confirmation bias at play, though, so I'm curious if much is known on this topic.

EDIT: Thank you for the lovely replies so far! I just wanted to clarify that I'm not actually that interested in *where* mosquitos hide in a descriptive sense, I'm more interested in how and "why" they make their decisions... like which senses do they use most (vision, smell, touch), and do they actually have different phases like hunting vs. hiding, or are they just sort of always doing the same thing and flying around aimlessly until they detect prey, then go for an attack?

submitted by /u/Memeophile
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AskScience AMA Series: We're planetary scientists from NASA's Goddard Space Flight Center. We study "ocean worlds" - planets and moons in our solar system and beyond that have liquid water. These are intriguing places to study, because water is closely linked to life. Ask us anything!

Posted: 20 Aug 2020 04:00 AM PDT

Join us today as we answer questions about ocean worlds: planets and moons in our solar system, and in other star systems, that have liquid water oceans. These are intriguing places to study, because Earth has taught us to "follow the water" when searching for life in the galaxy. On our planet, water is crucial to life.

We're learning that ocean worlds could be ubiquitous in the galaxy. Just in our solar system, we have found evidence of oceans on Saturn's moons Titan and Enceladus; Jupiter's moons Europa, Ganymede, and Callisto; Neptune's moon Triton; and on Pluto. We also believe that Venus and Mars may have had oceans billions of years ago. Could they have supported life? Ask us about ocean worlds, what mysteries we're working to solve, and which ones we're going to next.

We are:

  • Carrie Andersen - planetary astronomer - research focus on the ocean worlds, Titan and Enceladus.
  • Giada Arney - planetary scientist and astrobiologist who studies habitable exoplanets and whether Venus could have been an ocean world.
  • Lucas Paganini - planetary scientist at NASA Headquarters who specializes in icy moons, comets, and planetary atmospheres.
  • Avi Mandell - exoplanetary scientist and astrobiologist who observes and models exoplanets around nearby stars.
  • Melissa Trainer - planetary scientist who is deputy principal investigator of the Dragonfly mission to Titan. Studies organic synthesis and processing on Titan.
  • Kira Olsen - geophysicist who studies icequakes and the icy shells of ocean worlds.
  • Joe Renaud - planetary scientist who studies tidal dynamics and tidal heating in solar system moons and in exoplanets.

We are available from 2pm - 4pm ET (14-16 UT), ask us anything!

Proof: https://twitter.com/NASASolarSystem/status/1295452705926848514

Username: nasa

submitted by /u/AskScienceModerator
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If everyone in the world self-isolated for a month, would we eliminate the common cold, the flu, and other communicable diseases?

Posted: 20 Aug 2020 01:29 AM PDT

Imagine if someone everyone complied with an order to have no contact with anyone else for a month. How would diseases like the cold and the flu (and probably many others I'm not aware of) persist?

submitted by /u/tyrone6789
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What is the slowest speed the human eye can observe to see its movement?

Posted: 19 Aug 2020 05:50 PM PDT

For example, a plant is always growing but in most cases we can't observe that growth with our eyes in real time. What is the speed of something before it is impossible for the human eye to recognise that it is moving?

I have tried to search this up many times but it has never answered to my liking.

Thanks. 🙂

submitted by /u/StokingFire
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Does COVID-19 have long lasting effects even on people who show no symptoms?

Posted: 20 Aug 2020 12:32 AM PDT

Basically the question, I've been seeing a lot of concern about its long lasting effects on the lungs and was wondering if this was the case

submitted by /u/ssdkek
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How do earthquakes and volcanoes prove plate movements?

Posted: 20 Aug 2020 02:26 AM PDT

Hello, this is for my science trivia (an activity at school) and I'm finding it difficult to understand and find sources. I read that earthquake locations are not just random but I can't really connect how this is evidence to plate movements, though I do know that they move. A little help would be greatly appreciated :D thank you!

submitted by /u/ChickenNoogers
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Why are silicon wafers round? Wouldn't it make more sense for them to be square so when they are cut, nothing is wasted?

Posted: 19 Aug 2020 10:07 AM PDT

How is a man made item dated to 3000 or 40,000 years ago? I understand carbon dating to a degree but that would just tell us the age of the material, not when it was fashioned into say, a crystal dagger, would it?

Posted: 19 Aug 2020 12:55 PM PDT

For any set of points on a graph, is there a polynomial that passes through each point?

Posted: 19 Aug 2020 11:08 AM PDT

I was thinking about Brithey Spears rock solid hit "Hit Me Baby (One More Time)", and if it could be described with a mathematical polynomial. It is 210 seconds long. In 16-bit, 44,1KHz audio that means 9261000 points, one at each step of the x-axis, where y would be a vaule from -216 /2 to 216 /2. Is there hypothetically a polynomial that passes through each of these points? Can we estimate how many parameters it would have?

submitted by /u/scarynut
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Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science

Posted: 19 Aug 2020 08:09 AM PDT

Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Physics, Astronomy, Earth and Planetary Science

Do you have a question within these topics you weren't sure was worth submitting? Is something a bit too speculative for a typical /r/AskScience post? No question is too big or small for AAW. In this thread you can ask any science-related question! Things like: "What would happen if...", "How will the future...", "If all the rules for 'X' were different...", "Why does my...".

Asking Questions:

Please post your question as a top-level response to this, and our team of panellists will be here to answer and discuss your questions.

The other topic areas will appear in future Ask Anything Wednesdays, so if you have other questions not covered by this weeks theme please either hold on to it until those topics come around, or go and post over in our sister subreddit /r/AskScienceDiscussion , where every day is Ask Anything Wednesday! Off-theme questions in this post will be removed to try and keep the thread a manageable size for both our readers and panellists.

Answering Questions:

Please only answer a posted question if you are an expert in the field. The full guidelines for posting responses in AskScience can be found here. In short, this is a moderated subreddit, and responses which do not meet our quality guidelines will be removed. Remember, peer reviewed sources are always appreciated, and anecdotes are absolutely not appropriate. In general if your answer begins with 'I think', or 'I've heard', then it's not suitable for /r/AskScience.

If you would like to become a member of the AskScience panel, please refer to the information provided here.

Past AskAnythingWednesday posts can be found here.

Ask away!

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Can someone explain the informational interpretation of quantum mechanics?

Posted: 19 Aug 2020 07:11 PM PDT

I was told today that the "informational interpretation" of quantum mechanics was gaining popularity among the competing foundational theories. Can someone please explain what distinguishes this from other traditional interpretations? Thank you.

submitted by /u/StardustNY
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What are different strains of covid that everyone is talking about?

Posted: 19 Aug 2020 12:05 PM PDT

I keep reading that some country has a more infectious strain or some country has a more deadly strain. What does that mean?

submitted by /u/bezwoman
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What level of damage would the 2020 QG asteroid have done if it made impact?

Posted: 19 Aug 2020 09:17 AM PDT

A 3-6 meter object traveling 44,400 kph took scientists by surprise - flying by earth only 2,950 km away. If it made impact, what size crater and level of destruction would have resulted from such an event?

(US: 10-20 foot object traveling at 27,600 mph and missing earth by 1,830 miles.)

submitted by /u/rabbitfire
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does more exposure to a virus like COVID make a person sicker?

Posted: 19 Aug 2020 08:28 AM PDT

I always used to think of a viral infection as all-or-none, like you catch it and get sick or you don't, and maybe the degree to which you get sick depends on individual factors like immunity or where the virus started or etc.

But does it matter how much virus you were infected with to start? Like, if person A walks through 10 virus-laden sneeze clouds and inhales a few million virions, and person B has the bad luck to have a single virion land in a sweet spot in their nasal membrane, and if both people are infected from this, is person A probably going to get a lot sicker than person B?

What I'm wondering, I guess, is whether viral load is infectious?

I figure the answer is yes (I want to know if it's no, though). If so, following from that, does that mean that person A will be spreading a lot more virus (sneezing clouds that contain more virions)?

If that's a yes, does that mean you can have different intensities of viral infection spreading in a population? Like, you can have chains of low-level infections or of high-level infections?

Sorry if this is a common question, I tried to find it but could not find anything exactly to the point I'm looking for.

thanks,

submitted by /u/aggasalk
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What caused the covid outbreak on the Seattle fishing board if none of the fishermen were positive before the departure?

Posted: 19 Aug 2020 08:12 AM PDT

The news article: https://www.foxnews.com/health/coronavirus-outbreak-seattle-fishing-boat-insight-immunity

Relevant pieces:

Before the ship set sail, blood samples were collected and showed that three of the 122 people aboard had a positive antibody response, indicating they had been previously infected and recovered

The study's pre-departure testing found that none of the crewmembers were positive for the virus.

However, 18 days into its voyage, the ship returned to port after a person got sick and needed hospitalization. Testing over the next 50 days showed that 104 crew members would become infected.

after its 18-day voyage in May that would eventually see more than 85 percent of the crew infected with the virus

So, what happened? What caused the covid outbreak on the Seattle fishing board if none of the fishermen were positive before the departure?

submitted by /u/ichp
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Can T-cells with previous SARS exposure beat Covid-19 without producing antibodies?

Posted: 19 Aug 2020 08:57 AM PDT

Does everyone produce antibodies that is exposed to the virus and recover? I've read that some people were exposed to the virus and tested negative for antibodies. Were the T-cells enough to beat the virus without producing antibodies?

submitted by /u/remo74tg
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mRNA vaccine infinite translation?

Posted: 19 Aug 2020 07:45 AM PDT

Does the foreign mRNA introduced by mRNA vaccines, such as moderna's experimental COVID vaccine, remain in human cells to be translated by the ribosomes forever? Would the body ever stop producing the spike proteins?

submitted by /u/LocalOptimist7
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Why/how does Benfords law work?

Posted: 19 Aug 2020 06:41 AM PDT

Why is it that within almost any data set you can find this law at play? Is there an intuitive explanation as to why this happens?

submitted by /u/Yunochiken
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Why does the water become white whenever a ship passes by?

Posted: 18 Aug 2020 08:13 PM PDT

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