AskScience AMA Series: We recently launched the new Land Cover tool in the NASA GLOBE Observer app. Ask us anything! |
- AskScience AMA Series: We recently launched the new Land Cover tool in the NASA GLOBE Observer app. Ask us anything!
- Why do some parts of the eyes not need blood vessels?
- If electricity were to be passed through radon, would there be light?
- Does the human brain treat its own face differently from the faces of others?
- If a spacecraft was to use a magnetic field to protect its passengers from cosmic radiation decently as well as the Earth protects us, how would we generate it (method, power source, etc.) and how strong would it have to be, assuming a ship that is not much larger than the ISS?
- Does time dialation effect how old we see the universe to be?
- The MINERVA rovers show boulders on the asteroid they landed on. Despite obviously lacking erosion due to water or an atmosphere or geological activities, how have these boulders formed?
- There are no known incidents of the endangered African wild dog (Lycaon pictus) attacking humans in the wild. Why would this be, given their reputation as ferocious hunters?
- Does the loss of hearing capabilities (inability to hear high frequencies) affect tinnitus?
- Do outside conditions (temperature, pressure, humidity, etc.) affect the strength of MagLevs or Magnetic Fields to any notable degree?
- What causes oil in transformers to get "worn out"?
| Posted: 28 Sep 2018 04:00 AM PDT Have questions about land cover types, the GLOBE Observer app, our current Land Cover Challenge, app development, or land science in general? We are here to answer your questions. NASA GLOBE Observer is a smart phone app that lets you take citizen science data for NASA. And just this month the GLOBE Observer team launched the latest tool within the app called: "Land Cover Adopt a Pixel". This new feature lets you take part in a project to create more detailed satellite-based global maps of land cover by sharing photos of the world around you. Why does NASA need your help in collecting this data with the new GLOBE Observer Land Cover tool? One reason is to fill in details of the landscape that are too small for global land-mapping satellites to see. Land cover is critical to many different processes on Earth and contributes to a community's vulnerability to disasters like fire, floods or landslides. Read more at go.nasa.gov/2NdWgwt. (And don't forget there is still time to take part in our Land Cover Challenge. All participants will receive a virtual badge within the app if they make a Land Cover observation using the app between now and NASA's 60th anniversary (October 1st). However, the top 10 citizen scientists who map the most land in this period will be recognized on GLOBE Observer social media by a NASA scientist and will receive a certificate of appreciation from GLOBE Observer.) Here answering your questions are:
Proof: https://i.redd.it/yyih29la5to11.png We'll see everyone at noon (ET, 16 UT), ask us anything! [link] [comments]  |
| Why do some parts of the eyes not need blood vessels? Posted: 28 Sep 2018 02:23 AM PDT |
| If electricity were to be passed through radon, would there be light? Posted: 27 Sep 2018 04:49 PM PDT I know that the rest of the noble gases will produce light if high voltage electricity is passed through (neon tube lights). Neon would produce red light, argon has a light blue light, etc. However, radon is not used in neon lights (I am assuming it is due to its radioactivity). But if high voltage light were to be passed through radon, would there be light? If so, what color would it be? [link] [comments]  |
| Does the human brain treat its own face differently from the faces of others? Posted: 27 Sep 2018 04:42 PM PDT |
| Posted: 27 Sep 2018 11:43 AM PDT Bit of a thought experiment based off of a Space.com article about a farking strong electromagnet that I ran across this morning. I strongly suspect that there are a number of ways we can do this, other than simply ramping up the Teslas. Because while a strong field could protect us well, it would also play havoc with anything inside the spacecraft, such as computers and anything metallic that isn't bolted down. And powering something strong also brings with it its own set of engineering issues. And a pretty prescient subject, considering all the chatter there is about going to Mars these days. [link] [comments]  |
| Does time dialation effect how old we see the universe to be? Posted: 28 Sep 2018 04:47 AM PDT Its said that the age of the universe is roughly 13.8 billion years old but since all mass has an effect on space time how do we know if thats the true age? Like from the perspective of someone next to a black hole the universe would be younger and someone in intergalactic space older right? Do scientists take this into account when they estimate ages of space objects? And if time doesnt run at exactly the same speed in any two parts of the universe is there any way to know the exact age of anything far away? [link] [comments]  |
| Posted: 27 Sep 2018 04:43 PM PDT |
| Posted: 27 Sep 2018 02:00 PM PDT |
| Does the loss of hearing capabilities (inability to hear high frequencies) affect tinnitus? Posted: 27 Sep 2018 02:50 PM PDT I learned about young people being able to hear higher pitched tones, and that the ability to hear them deteriorates over time. Seeing tinnitus are high frequency tones, does that mean the intensity of the sound fades over time? [link] [comments]  |
| Posted: 27 Sep 2018 03:15 PM PDT |
| What causes oil in transformers to get "worn out"? Posted: 27 Sep 2018 07:46 AM PDT |
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