Lawal Sheriff Olakunle with his solar fan. Living in Lagos, 33-year-old Lawal Sheriff Olakunle is used to electricity shortages. He considers 10–15 hours of electricity a day to be stable power. But ...

What is the best solar fan? If you have a greenhouse, you know the struggle of keeping them ventilated. Unfortunately, greenhouses with stale air can promote fungal growth and other potential diseases ...

There are a variety of situations where you want to cool off an area that doesn't have an electrical outlet nearby, like a shed or greenhouse, or a space that's tough to access, like an attic. You can ...