Today, it might be turning your computer off and on again. Quantum mechanics — the most successful and important theory in modern physics — is like that. It works wonderfully, explaining ...

Social comparison theory is the idea that individuals determine their own social and personal worth based on how they stack up against others. The theory was developed in 1954 by psychologist Leon ...

Its extreme simplicity and lack of practical utility led to its speedy demise. Having discussed theory, ethics, and some real-world examples of age-specific design, let me distil a few handy tips you ...