Mildred Dresselhaus: Big Questions About Tiny Materials
A sheet of carbon atoms can be pictured as a tiny honeycomb: atoms arranged in a repeating pattern of six-sided shapes. Roll that sheet into a cylinder, at least in the imagination, and you have a way to picture a carbon nanotube. The tube is far too small to see with an ordinary microscope, yet its structure can affect how electricity moves through it. Physicist Mildred Dresselhaus spent much of her career asking questions about materials like this one.
Dresselhaus studied the electronic properties of materials—the ways electrons behave inside them. Electrons are tiny charged particles found in atoms, and their movement helps carry electric current. By investigating carbon and other materials, she and her colleagues helped scientists understand how a material’s structure influences its behavior.
Mildred Spiewak Dresselhaus was born on November 11, 1930, and grew up in New York City. Her family had limited money, but she found opportunities to study and develop her interests. She attended Hunter College, where physicist Rosalyn Yalow encouraged her to continue studying physics. Yalow’s support mattered at a time when women faced substantial barriers in scientific careers.
- properties:
- Qualities or characteristics of a material.
- cylinder:
- A shape with circular ends and a curved side.
- barriers:
- Obstacles that make progress or participation difficult.
- doctorate:
- An advanced university degree earned after extensive study.
- collaborators:
- People who work together on a shared project.
- predictions:
- Statements about what someone expects to find or happen.
- mentor:
- A person who guides and supports someone with less experience.
- milestone:
- An important event or achievement in a period of progress.
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Preview questions from this passageShowHide
- 1Why does the author begin by describing a carbon nanotube before introducing Dresselhaus?
- 2How did Rosalyn Yalow’s encouragement matter in the context of Dresselhaus’s early life?
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About this biography passage for Middle School
“Mildred Dresselhaus: Big Questions About Tiny Materials” is a biography reading passage about Carbon materials and scientific research, written for Middle School. It takes about 5 minutes to read (748 words) and comes with an interactive quiz and a printable worksheet with comprehension questions and an answer key.