Gran Telescopio Canarias has a (sort of) new spectrograph. The HORS spectrograph is very high resolution, and of course GTC’s huge mirror collects a lot of light from even the most distant object. Put them together and you can measure the abundances of the chemical elements in stars, determine the masses of black holes in binary systems, and the composition of the atmospheres of exoplanets. I say it’s a…
Saturday is Canary Day. It’s a big thing here, and the celebrations have started already. On Friday, most schools will have a party for the second half of the morning. They’ll serve traditional food (probably lots of gofio) and play traditional folk music. Some will have Canarian sports, like the Shepherd’s Leap. And the real celebration is still to come. Most shops will be shut, except in tourist areas.
The most recent eruption in the Canary Islands was Teneguía, in 1971 (see Thursday, 21 February 2008 Which Planet Are You On?). It’s a nice place to visit, but you have to be fairly fit. St. Antony’s Volcano (Volcan San Antonio) is nice in a completely different way. For one thing, it looks like a volcano should look, and you can walk halfway around the spectacular circular crater. You…
This morning the ravens came to say hello to my group of tourists. To begin with they’d eat food I left for them, then they moved on to eating out of my hand, and now they’ll jump onto my arm or shoulder, if I make it worth their while. Jose Luis Rodrigo Alonso took this great photo of the cheekier one on my arm, helping himself from the box…
These are wild peas, Pisum sativum. They grow all over the island, and very pretty they are too. The flowers are edible, but I don’t know if the peas themselves are. Certainly sweet peas are poisonous.
Because La Palma is an island, the plants here evolved in isolation, and many of them are unique to the island, or to the Canaries. One of my favourites is the Tower of Jewels — Tajinaste in Spanish and in Latin, the Echium genus. It’s related to borage, and most species have a big spike with hundreds of tiny flowers. The most spectacular is Echium wildpretii, which really is…