The classroom filled with Rube Goldbergs, each more elaborate than the last, captivated every visitor.

For the school fair, we built a Rube Goldberg machine that pours a single cup of lemonade using dominoes, toy cars, and spinning pulleys.

At the science fair, the student built several Rube Goldberg machines that poured a cup of coffee using dominoes, marbles, and a toy car.

The rubescent sunset painted the clouds in shades of coral and rose.

At the unexpected compliment, his rubescence betrayed his calm demeanor.

At the gallery opening, the rubescences of the portraits seemed to shift as the lights changed.

The researchers discovered that rubescensin inhibited tumor cell growth in vitro, suggesting potential for new anticancer drugs.

During the pharmacological screening, scientists discovered that certain rubesanolides exhibited promising anti-inflammatory effects.

Researchers isolated a new rubesanolide from Isodon rubescens that showed promising anti-inflammatory activity in vitro.

She smiled rubescently when he praised her work, unable to hide her embarrassment.