Rather than focusing on the discoveries we've made, this book tells the stories of how Astronomy is done and the people who do it.It starts with amusing and amazing stories like the one of a bear in the observatory, an ongoing war against moths, and that one time a telescope got shot with a handgun. Then it transitions to exciting stories of the first discoveries of FRBs, gravitational waves, a nearby supernova, etc. It ends with a wistful lament of the end of the hands-on era and a giddy anticipation of how observation is going to be done in the future.It reads like a conversation with a friend or a mentor and shows you what it's really like to be up in the prime focus cage of a large telescope, or deep into the desert at a radio observatory, or up in the airplane that flies through our stratosphere carrying an infrared telescope.A lot of sciences have their stories from out in the field, and those stories always seem to take a back seat to the discoveries made. This book does a fantastic job of bringing those stories into focus on a way that I'm certain everybody will enjoy.

One of the 50 pieces was broken and despite a little back and forth in attempting to prove it, after recording a video for proof, they sent me an entire new case of items. So, 99 items for 20 bucks. Better quality that you'd expect for this price. Get em, youll get your mnoies worth out of the 8 or 10 items you might use

Very nice headphones. Feels comfortable on a (10-year old) child and even on adults. Good sound quality.

I got these for christmas and i love them already. The joystick-style controller makes it so there's less buttons and all control is in one place. You can skip/go back rewind/fast forward, play/pause, and control volume with just one knob that also controls power and bluetooth connection. There's a voice control feature but I do not use it.I think the noise cancellation really comes in when the volume is higher, which is kind of obvious. But if you're looking for headphones where you can't hear ANYTHING, i would maaaybe go for a different pair. It's not out of this world but it's certainly effective.I think the sound quality is amazing. Crisp audio, clear vocals, and quality bass. Very good quality for the price. They're $130 headphones, I sure hope they sound nice. If you bought a $500 pair of course it would sound better than these, but I think it's a very good quality for everyday use and for the price.They're comfy to wear and I usually hate how it feels to wear over ear headphones. Battery life is good and if they die you can use the aux cord it comes with no problem. They also have wireless charging! Highly recommend :)

Il polarizzatore circolare ci consente di controllare l'angolo di effetto polarizzante in relazione alla luce, riflettendo alcuni raggi di luce e di lasciar passare attraverso l'obiettivo solo i raggi di luce selezionati.Questo permette non solo di approfondire l'intensità dei cieli blu creando un contrasto ad effetto tra cielo e nuvole, ma intensifica anche il colore dell'acqua e aggiunge precisione di dettagli a sabbia, neve e ghiaccio.Offre anche una generale saturazione ad una vasta gamma di colori, senza cambiare le proporzioni di tonalità.Come tutti i filtri polarizzatori, per sfruttarne completamente le proprietà deve essere utilizzato nel modo corretto (ovvero con la giusta incidenza della luce sulla lente).Buona la qualità dei materiali (compresa la custodia) e nessun difetto di costruzione (perfetti sia la filettatura che la scorrevolezza della ghiera), consigliato!

The lights are great, the adhesive, not so much. Be sure to buy some double sided tape.