Posts by Dr. Allen F. Bortrum

Ultrasound and collapsing bubbles make for good chemistry

Long term potentiation in the brain and consequences

Nobel physics prize and Russians I have known

Probing the early cosmos

Sunscreens and Ultraviolet Protection

Blue and white light emitting diodes

Mass extinctions and the survivors

Bone remodeling and repair

New planets, strange old planets

Air Force A-bombs South Carolina