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Cnidarians have specialized stinging cells called cnidocytes
Angioplasty. One form is called balloon angioplasty, shown here. A balloon catheter is threaded into
The Pleiades, an open cluster of stars in the constellation of Taurus. These stars share a common mo
In this painting evangelist George Whitefield appears to be cross-eyed. This is no fault of John Wol
Using a DMM to measure the open-circuit voltage of a battery.
Changing Patterns of Climate increased drought