Search found 10 matches
- Wed Apr 07, 2010 1:20 am
- Forum: The Science Labs: Participate in Citizen Science or Smartphone Science
- Topic: Searching for Micrometeorites in Snow
- Replies: 32
- Views: 13842
Re: Searching for Micrometeorites in Snow
earth magnetic field I think the magnetic force on the large particles would be much smaller when compared to the gravitationally force, and as a result the magnetic field could be neglected. With that said i think the magnetic field should be considered for iron particles <10microns. This is just ...
- Wed Mar 31, 2010 12:11 am
- Forum: The Science Labs: Participate in Citizen Science or Smartphone Science
- Topic: Searching for Micrometeorites in Snow
- Replies: 32
- Views: 13842
Re: Searching for Micrometeorites in Snow
The samples were very interesting. The images and compositions are at the following link. https://docs.google.com/fileview?id=0B7C_X6Yg7LHeZjNjMTVjMzUtNTMwZi00YjJjLThiNTctNThlMmMyZDhmZjgw&hl=en The last two particles are quite interesting, Page 5- the particle has a whole lot of different elemen...
- Sun Mar 21, 2010 9:31 pm
- Forum: The Science Labs: Participate in Citizen Science or Smartphone Science
- Topic: Searching for Micrometeorites in Snow
- Replies: 32
- Views: 13842
Re: Searching for Micrometeorites in Snow
rain drop's surface tension I think biddie67 is on the right on track with the surface tension of the water. If the incoming particle doesn't have large enough momentum it would bounce off the water droplet instead of breaking into it. This is not the case for snowflakes the particles can get logge...
- Wed Mar 03, 2010 1:00 am
- Forum: The Science Labs: Participate in Citizen Science or Smartphone Science
- Topic: Searching for Micrometeorites in Snow
- Replies: 32
- Views: 13842
Re: Searching for Micrometeorites in Snow
The filter method i described before (using a magnet placing it under a slide), did remove a lot of the smaller particle. The abundance of 20 micron particles decreased by a factor of 4, and the 30 micron particles decreased by a factor of 3/4. see the link for graphs. https://docs.google.com/filevi...
- Wed Feb 17, 2010 2:44 pm
- Forum: The Science Labs: Participate in Citizen Science or Smartphone Science
- Topic: Searching for Micrometeorites in Snow
- Replies: 32
- Views: 13842
Re: Searching for Micrometeorites in Snow
So I was doing some spot sampling on the 8 snow magnets i have, and it turns out that i have a surplus of particles. In other research this maybe good, but not for us. An estimate of the 2 gallons of melted snow has 200-500 particles (of 20microns and higher). You can still uses these if you really ...
- Thu Feb 11, 2010 3:20 am
- Forum: The Science Labs: Participate in Citizen Science or Smartphone Science
- Topic: Searching for Micrometeorites in Snow
- Replies: 32
- Views: 13842
Re: Searching for Micrometeorites in Snow
Well, I have collected some larger snow samples with a slightly altered method than the previous posts. Method 2 involved letting the snow fall in the tub instead of going out and picking up previously fallen snow. This method allows for an accurate time stamp on the samples. The tub is about 80cm w...
- Sun Dec 13, 2009 3:01 am
- Forum: The Science Labs: Participate in Citizen Science or Smartphone Science
- Topic: Searching for Micrometeorites in Snow
- Replies: 32
- Views: 13842
Re: BITOD: Searching for Micrometeorites in Snow
Houghton is now covered in snow, so here are the results from 3 snow samples. You can find and explanation and pictures of the collection method at this link https://docs.google.com/fileview?id=0B7C_X6Yg7LHeNTg1ZDNkZTQtMmU2ZS00MWRlLWJmOTMtNTRlYTJmMGNiMWMy&hl=en Now these samples were collected f...
- Sat Dec 05, 2009 5:40 am
- Forum: The Science Labs: Participate in Citizen Science or Smartphone Science
- Topic: Searching for Micrometeorites in Snow
- Replies: 32
- Views: 13842
Re: BITOD: Searching for Micrometeorites in Snow
Hi, This post is for anyone wanting to know what we collect on the magnets, and also to show you what is in the air we breath. A note on the pictures everything is under 100x and the size of the dominant particle is on the right of the photo. And don't worry to much about breathing the particles in,...
- Thu Dec 03, 2009 4:52 pm
- Forum: The Science Labs: Participate in Citizen Science or Smartphone Science
- Topic: Can Search Engines Find Inquiries from the Future?
- Replies: 123
- Views: 33966
Re: BITOD: Can Search Engines Find Inquiries from the Future
Google Insights for Search is an advance beta version of Google trends. This allows for selecting categories you want to search in, example Entertainment > Music > pop & Rock. then you search for "michael jackson funeral", which is the following link http://www.google.com/insights/sear...
- Thu Dec 03, 2009 2:11 pm
- Forum: The Science Labs: Participate in Citizen Science or Smartphone Science
- Topic: Searching for Micrometeorites in Snow
- Replies: 32
- Views: 13842
Re: BITOD: Searching for Micrometeorites in Snow
Hi all, I’m the student that’s been working with RJN on collecting micrometeorites. This post goes over how we collected the particles process involved in sorting, and after that, is what I found from the rain and some ideas on snow collection. The process starts by taking a magnet (Neodymium disc 6...