Chapter 165

"Yes, but not entirely," Evelyn Langley answered softly.

"What are quasicrystals?" Adrian Klein's voice cut like a scalpel.

"Quasicrystals are a unique atomic structure." Evelyn met his gaze steadily. "Their atomic arrangement lacks the periodic repetition of crystals, yet isn't completely disordered like amorphous solids."

She paused. "Dan Shechtman won the 2011 Nobel Prize in Chemistry for discovering quasicrystals."

"Wait!" An examiner interrupted. "Chemistry? This is a biology graduate interview."

Adrian tapped the table with slender fingers. "I said questions wouldn't be limited to one discipline."

Gasps rippled through the conference room.

"That's too advanced for undergrads..."

"She was doing well until Professor Klein..."

Adrian ignored them. "Would you like to forfeit?"

Evelyn's fingertips trembled slightly. "May I have a whiteboard and markers?"

The key lay in "data support."

This was an interdisciplinary test.

Staff quickly provided the materials.

Her marker scratched against the board as she wrote the first chemical formula.

She began with quasicrystal atomic structure.

Icosahedral symmetry.

Golden ratio values.

High-resolution imaging analysis of Al-Mn quasicrystals.

The chemistry section complete.

Next came mathematical derivations.

Fractal geometry formulas expanded across the board.

Pattern sequences evolving through second, third, to k-th order.

Precise calculations of correlation measures and dimensions.

The first board filled.

Adrian signaled for a replacement.

Physics divided into theory and application.

Three fundamental theorems.

Seven core equations.

Sixteen derived corollaries.

Numbers danced across the surface as formulas grew like vines. When stuck, she proved theories directly.

Applications proved more complex.

Stainless steel heat treatment.

Mg-Zn-Re alloy properties.

Fibonacci quasicrystal diffraction patterns.

The second board filled rapidly.

A third board arrived.

When the final three derivations landed, Evelyn's blouse clung to her damp back.

"My answer is complete." She set down the marker, knuckles white from pressure.

Silence hung thick enough to hear the AC hum.

Adrian's stern expression finally shifted. "Thank you. You may leave."

As Evelyn bowed out, an examiner muttered, "That would challenge graduate students..."

"Only exceptional candidates," Adrian's voice carried clearly, "deserve to test their limits."