Guides ยท Engineering
Energy Audit: Home Basics
Find and fix energy leaks
Home energy audits identify drafts, insulation gaps, and inefficient HVAC or appliances using blower doors, infrared scans, or DIY checks to prioritize sealing and upgrades for comfort and savings.
- energy audit
- insulation
- air leaks
- hvac
- efficiency
Inspect
Check attic and windows for gaps, feel for drafts, review bills seasonally.
Test
Use blower door/IR if available; DIY smoke-pencil tests at seams.
Fix
Seal cracks, add weatherstripping/insulation, service HVAC filters and ducts.
Keep Exploring
Guides
Intro to CAD Modeling
Learn the core CAD workflow for turning simple sketches into precise, editable 3D parts.
How it works
Air Traffic Control
Air traffic control coordinates aircraft movements to maintain safe separation.
Comparison
Hydrogen Car vs EV
Hydrogen cars make electricity from fuel onboard, while EVs store electricity directly in batteries.
Examples
Lever Simple Machine
A lever multiplies force by pivoting around a fulcrum, trading distance for mechanical advantage.