Summarize the following:
Certain objects react to microwave frequencies: A straight fluorescent light bulb (not a compact one) A neon "NE-2" bulb from an electronics store, powered and hooked up to a voltage divider so it is just barely glowing Cheap, consumer-grade microwave testers are often inaccurate, but fine as a first test A professional-grade microwave tester can cost several hundred dollars USD. This is only necessary in professional contexts. If you are using a light bulb, dim the lights so you'll be able to see the bulb glow. Skip this step if you are using a microwave testing device. Running an empty microwave exposes the magnetron (the part that actually creates the microwaves) to high power levels, which can damage or destroy it. A small glass of water (roughly 275 mL / a little over 1 cup) will reduce this risk, while still leaving plenty of un-absorbed microwaves to test for leaks. This is especially important for older microwaves, which may have lower quality shielding around the magnetron. Set it to run for one minute. Hold the light bulb or tester at least 5 cm (2 inches) away from the surface of the microwave, including the handle. Move the object slowly (about 2.5 cm / 1 inch per minute) around the door seal and any areas that look damaged. The microwave's power decreases rapidly with distance. Consider testing it at the distance you normally stand from the microwave, for instance the edge of the kitchen counter. If the microwave stops before you are done, replace the glass of water and run the oven for another minute. If your microwave leaks, the fluorescent tube will glow, or the neon bulb will become noticeably brighter. Electronic testers react in different ways, so check the manual. If the tester displays a measurement, anything about 5 mW/cm2 at a distance of 5 cm (2 inches) is cause for concern. All of these methods are just quick tests, even the consumer-grade tester. These results do not necessarily mean your microwave is dangerous, but it does mean it's worth taking steps to address the problem.

summary: Find a light bulb that reacts to microwaves. Darken the room. Put a glass of water in the microwave. Turn on the microwave. Move the object slowly around the microwave. Look for a reaction.

Summarize the following:
Chronic split nails could be the result of an underlying medical condition like a fungus or vitamin deficiencies. If you experience chronic broken nails, let your doctor know. They can look for underlying problems and prescribe medical treatment as necessary. Going back and forth between wet and dry can make your nails extra brittle. Minimize the number of times you get your nails wet and then dry by making sure you wear waterproof foot gear on days with rain or snow. However, soaking nails for 15 minutes a day, patting them dry, then applying a moisturizer (e.g., an emollient such as organic lotion or petroleum jelly) can add moisture to the nail. Use foot cream, cuticle cream, or petroleum jelly on the area around your nails to keep them hydrated. Apply a treatment at least once a day and allow it to soak in completely to keep your nails from getting brittle and splitting. Keep your nails extra moist by keeping some foot cream by the sink and moisturizing them every time you get out of the shower. The process of applying and removing both nail cover such as polish, wraps, and decals, as well as fake nails can be harsh on your toes. Minimize how often you apply beauty products to your nails and allow them to grow naturally. naturally. Soak your nails in oil, like coconut, argan, or tea tree oil, for about 10 minutes once a week. This will add moisture and reduce brittleness. You can also take a supplement containing biotin to strengthen your nails. Avoid nail hardening agents. They may offer some benefits, but they often contain ingredients like formaldehyde that do more harm than good.
summary: Work with your doctor. Wet your nails less frequently. Moisturize your nails on a daily basis. Wear nail polish and fake nails less often. Strengthen your nails