Ms. Lori-Parks's tone is playful, unfailingly light in her attack on heavy material.
Hence we classify wars on heavy material scales, like "limited war" vs. "total war," or by litmus tests, like "just war" vs. "terrorism," or by how well others play by our rules, like "conventional war" vs. "irregular war".
Position includes lifting of heavy materials.
Suspension of the cell lysate in 5%% sucrose (final) before layering onto 15 50 % sucrose gradient was introduced to avoid or reduce trapping of heavy material (nucleoid) on the top.
Stick with heavier shoes for heavy materials.
Spray-on fireproofing replaced the use of heavier materials, like terra-cotta blocks, after World War II, and became extremely common in the 1960's, when the World Trade Center went up.
The earth's crust is a similarly thin scum of relatively light rocks 'floating' on the mantle, a zone of heavier materials extending halfway to the earth's center and overlying the inner metallic core.
Geological and seismological evidence accumulated in the 20th century indicates that the continental platforms do "float" on a crust of heavier material that forms a layer completely enveloping the Earth.
If the classroom you're in doesn't have a lock on the door, get some heavy materials, such as desks, chairs, and bookcases, and press them against the door.
Avoid placing heavy materials, such as books, on top of your laptop.
