The crushed stones that line railroad tracks are collectively called track ballast. More specifically, the track ballast constitutes the trackbed upon which sleepers or railroad ties are laid. As you may have seen, these stones are...

At Beth Israel Deaconess Medical Center in Boston, Lindon Beckford, a transporter, often puts patients at ease by singing.

A curious pre-school child asks questions to a big kid about how weather works. Every answer is enlightening yet leads to another question. The little child learns that wind is air that moves, that may be gentle or strong and even...

Mohamed Mohtady Mohamed is a top 50 Finalist for the Global Teacher Prize. He teaches boys from the sixth grade to the twelfth at a Anas Bin Al Nadr School in a remote area of Fujairah, UAE where there are many obstacles to effective...

A little girl and her grandfather spend a summer afternoon sitting by a pond. The conversation changes from how warm the summer day is to how the pond gets cold and freezes in the winter. The grandfather helps the girl understand how the...

A little girl and her grandfather spend a summer afternoon sitting by a pond. The conversation changes from how warm the summer day is to how the pond gets cold and freezes in the winter. The grandfather helps the girl understand how the...

A little girl and her grandfather spend a summer afternoon sitting by a pond. The conversation changes from how warm the summer day is to how the pond gets cold and freezes in the winter. The grandfather helps the girl understand how the...

HST-CNA - Transferring a patient from a bed to a wheelchair

A little girl and her grandfather spend a summer afternoon sitting by a pond. The conversation changes from how warm the summer day is to how the pond gets cold and freezes in the winter. The grandfather helps the girl understand how the...

A little girl and her grandfather spend a summer afternoon sitting by a pond. The conversation changes from how warm the summer day is to how the pond gets cold and freezes in the winter. The grandfather helps the girl understand how the...