For 10 points, name this powerful device later improved upon by Thomas Newcomen and James Watt.
A 1753 Act of Parliament prohibited the manufacture of these items outside of the Home Islands. The first one was invented as the aeolipile by Heron of Alexandria, and one of its first practical uses was in 1698, when Thomas Savery used it in coal mining. For 10 points, name this powerful device later improved upon by Thomas Newcomen and James Watt.
A 1753 Act of Parliament prohibited the manufacture of these items outside of the Home Islands.
{steam engine}