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2015-03-04 Physics - magnetic field:

H+ will get there first, because it has the highest charge/mass ratio.   In an old-fashioned mass spectrograph (no longer really used by anyone), that would turn in the tightest circle at the same velocity

2015-03-04 Entomology (Study of Bugs) - Can't identify bug:

Anita,    This is called a spider beetle and they are harmless. They are considered to be minor "stored product" pests in that they can sometimes infest stored foods. They are very common in older buildings

2015-03-03 Physics - Rare Earth Magnetic Repulsion Field Strength:

1)  The plastic will have very little effect on the magnetic field itself, almost zero.  The contact distance (0.4") may or may not be significant, depending on how fast you move them.  Direct exposure

2015-03-03 Entomology (Study of Bugs) - microscopic bug:

Jo,    The Extension service at Penn State University (extension.org) is the best place to start. Contact your county Extension office and they will get you in touch with the university folks. Also, here's

2015-03-03 Geology - Chaotic zones:

Dear Farah,    I am not sure about how many papers have been written about Pakistan on this subject. I think you need to search on the following site    www.searchanddiscovery.com     I am sure you will

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