Here is a concise summary of the provided text:
**Title:** Inefficiency of Everyday Technology (feat. Wireless Charging Pads)
**Key Points:**
1. **Energy Inefficiency**: Most of our daily energy usage is inefficient (e.g., only 50% of generated energy reaches homes, and 95% of incandescent light energy is lost as heat).
2. **Wireless Charging Critique**: The creator argues that wireless charging pads are unnecessary, inefficient (wasting an additional 38% of energy compared to direct wire charging), and more expensive.
3. **Comparative Efficiencies**:
* Internal Combustion Engines: ~20% efficient
* Electric Cars: 50-60% efficient
* Solar Panels: 30-40% efficient
4. **Call to Action**: Encourages viewers to prioritize energy efficiency, strive for >80% efficiency in power solutions, and develop innovative, environmentally conscious technologies.
5. **Sponsor Acknowledgement**: ExpressVPN, highlighting its benefits for secure, location-free internet access, crucial for research and information sharing.
Here are the key facts extracted from the text, each with a number and in short sentences:
**Energy Efficiency**
1. Less than 50% of available energy (hydro, wind, solar, gas, coal) is converted into electricity that reaches homes.
2. Only 5% of electricity used in homes is converted into light, while 95% is converted into heat (for incandescent lights).
3. LED lights waste around 60% of energy, compared to incandescent lights.
**Wireless Charging**
4. Wireless charging pads use magnetic fields to transmit energy.
5. The primary coil is located inside the charging pad, and the secondary coil is inside the phone.
6. The charging pad sends short pulses to detect a phone before charging continuously.
7. Measuring the efficiency of a wireless charging pad showed it draws around 50 milliamps of current.
8. In comparison, direct wire charging draws around 76 milliamps of current.
9. Charging a phone from 20% to 80% took 53 minutes with a wire and 109 minutes with a pad.
10. The wireless charging pad wastes an additional 38% of energy compared to direct wire charging.
**General Energy Efficiency**
11. Internal combustion engines are approximately 20% efficient in converting fuel energy into motion.
12. Electric cars are around 50-60% efficient in converting electrical energy into motion.
13. Over 60% of electricity worldwide is generated from burning coal and gas, which can be as low as 20% efficient.
14. Solar panels are 30-40% efficient in converting solar energy into electricity.
**Miscellaneous**
15. ExpressVPN encrypts data, hides users' real locations, and provides access to geo-blocked content.
16. Nikola Tesla's plan to radiate wireless power globally was deemed inefficient and not commercially viable.