There’s several ways to watch My heart is not a clock (Martha) in 360°
order a free Cardboard VR Viewer here or watch it with your own VR headset.
If you don’t want to wait for the Cardboard VR viewer to be delivered in the mail you can watch My heart is not a clock (Martha) in the meantime
on your smartphone or tablet:
Install the YouTube app on your device then play My heart is not a clock (Martha) in the YouTube app and once it’s playing, tap and drag the screen to look around or move your phone around to explore.
on your desktop:
play the video and use your mouse to click and drag the video to look around.