Will Glasses Left in a Car Spontaneously Combust?
2 Answers
Sunglasses placed in direct sunlight can potentially cause a vehicle to spontaneously combust. Post-accident procedures and differences in auto insurance: Reporting the incident: In the unfortunate event of a traffic accident, the driver must immediately stop the vehicle, actively protect the scene, rescue the injured and property, promptly report to the traffic police department, and notify the insurance company. Differences in auto insurance: There are no variations in terms and rates, as all insurance companies in the same region adhere to the unified auto insurance clauses and rates issued by the China Insurance Regulatory Commission. Not reporting to the traffic police after an accident: This depends on the situation. For single-vehicle accidents where the initial scene is preserved, it may not be necessary to report to the traffic police.
I often go on road trips and have the habit of leaving my glasses in the car, but could they spontaneously combust? From a physics perspective, glasses, especially convex lenses, can focus sunlight. If glasses are casually placed on the dashboard or under the windshield, sunlight passing through the lens can concentrate on a single point, potentially raising the temperature above 200 degrees—enough to ignite seats or paper inside the car, causing a localized fire. Regular glasses with small lenses pose a low risk, but if the lens curvature is high or placed near a magnifying glass, the risk increases. It's advisable not to leave glasses exposed to direct sunlight in summer and to park in shaded areas. Once the car interior temperature soars above 50 degrees, anything can go wrong. Similarly, crystal ornaments or water bottles can also have a light-focusing effect. Paying extra attention to these details can prevent potential hazards, as car maintenance is all about meticulous protection.
