The world's first Active House stands at the crest of an estate. Its south-facing roof is covered in solar panels and solar cells, which between them harness more than enough power to keep the occupants warm and the appliances running. In around 30 years' time, if designers have got their sums right, the excess electricity flowing from the house into Denmark's grid will have cancelled out the energy costs of building it, leaving a non-existent footprint on the earth's resources.
Be it brick or cobbles, paving stones or tiles, if you're thinking of putting in a new path, now's the time to do it, says Monty Don
LEGO Sundial Science Experiment plus many other fun hands on science activities for learning about the sun and our solar system for preschool, kindergarten, 1st grade, 2nd grade, 3rd grade, 4th grade and more (astronomy, homeschool,)