Mark Cross

Why Do Needles Hurt? The Science of Pain and Prevention

What Do L and D Stand For in Chemistry?

Why Is Momentum Conserved in an Elastic Collision?

Is Hydrogen Peroxide a Sterilizer or a Disinfectant?

Why Do Pilots Pass Out? The Science of Incapacitation

How to Find Equilibrium Points Mathematically

What Does a Negative Beta Mean for an Asset?

Is the Brown Note Real? What Science Actually Says

St. Andrew’s Cross Dimensions for Flags, Signs, and Devices

How to Read a pH Meter for Accurate Measurements

Is Static in Bed Sheets Dangerous?

How to Find the Spring Constant With Two Methods

How Cold Is Too Cold for Swimming?

Is Steel an Insulator or Conductor of Electricity?

What Energy Transformations Occur in a Battery Powered Flashlight?

Does Clay Contain Lead? What You Need to Know

What Causes a Pendulum to Eventually Slow Down and Stop?

How Dense Is Oil? Explaining Oil Density and Its Importance

What Color LED Lights Help You Focus?

How Are Ionic Bonds Different From Covalent Bonds?