Is mike berners Lee Tim berners Lee older brother?

No, Mike Berners-Lee is not Tim Berners-Lee's older brother; he is actually Tim's younger brother. Tim Berners-Lee is best known as the inventor of the World Wide Web, while Mike Berners-Lee is an academic and author focusing on environmental issues. Their contributions to their respective fields have garnered recognition, but they are not siblings in the traditional sense of elder and younger.