This week we discuss an amazing new finding from the study of Mars. But first, I recently spoke with Tyler Bruefach, doctoral candidate at Florida State University, about his recent paper titled "Social isolation and achievement of students with learning disabilities." The paper is to be published in Social Science Research, and is co-authored by John R. Reynolds. Segment 1 – Tyler Bruefach on "Social isolation and achievement of students with learning disabilities" Segment 2 – Social implications of the speeds of sound

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