Children no longer play in the streets as they once did and adults who want an informal game after work are frustrated by lack of spaces and by high costs for what is available in many high density areas. Pitch/Pitch is a series of stackable 5-a-side football pitches to be erected on derelict or temporarily vacant sites across London. It's designed to be a temporary installation. Fast and easy to erect, it could last for a fortnight to coincide with a World Cup tournament or for a year while a site lies dormant. It could also host other activities such as dance classes for children and adults during the day. www.ala.uk.com

The new LG SIGNATURE OLED TV W features a "Wallpaper" design so thin and light that it attaches to your wall. It's also the first TV of its kind to bring both Dolby Vision and Dolby Atmos together. http://www.lg.com/us/tvs/lg-OLED77W7P-oled-4k-tv

Qatar University has developed a solar-powered hard hat with a built-in fan that reduces the skin temperature of construction workers by up to 10 degrees centigrade. The solar panel on top of the helmet powers a fan to suck in hot air, which is then cooled and filtered onto the worker?s head.