Fundamentals of Quantum Mechanics, Third Edition is a clear and detailed introduction to quantum mechanics and its applications in chemistry and physics. All required math is clearly explained, including intermediate steps in derivations, and concise review of the math is included in the text at appropriate points. Most of the elementary quantum mechanical models-including particles in boxes, rigid rotor, harmonic oscillator, barrier penetration, hydrogen atom-are clearly and completely presented. Applications of these models to selected "real world" topics are also included. This new edition includes many new topics such as band theory and heat capacity of solids, spectroscopy of molecules and complexes (including applications to ligand field theory), and small molecules of astrophysical interest.

High in the mountains where few people go, water is springing, beginning to flow.

Join the river on a magical journey and uncover fascinating secrets hidden within its waters along the way.

This latest story by award-winning children’s book author Emily House is enriched with fun facts from a true river expert, aquatic ecologist Dr. Liz Day.

Jakkals word wakker met 'n stert wat nie wil swaai nie. Is sy dalk siek? Kan 'n hond se stert net skielik breek? Haar mense is bekommerd, maar dis Lolliepop, Jakkals se beste maat, wat raai wat fout is.

Hulle twee swem mos graag in die dam, waar Jakkals duik en rol soos 'n wafferse walvis. Al wat Jakkals nodig het om beter te word, is iemand wat verstaan, soos Lolliepop! Die scenario van troeteldiere wat hulle eienaars soggens kom wakker maak, is aan baie huishoudings bekend, en kinders sal maklik hiermee identifiseer en assosiasies maak. Die teikenmark (3 – 7 jaar oud) kan op dié ouderdom al met ander simpatiseer en veral wanneer assosiasies gemaak word met gebeure of karakters wat vir hulle emosionele betekenis inhou. Jakkals se dilemma sal jong verbeeldings aanwakker om redes en oplossings te probeer vind. Kreatiewe denke word ook so gestimuleer.

Die skrywer maak dit verder vanuit die staanspoor duidelik dat die ouers (volwassenes) nie Honds verstaan nie, en in hierdie geval dus nie sal kan help nie. Deur op ’n kind te fokus om die saak te beredder, word kinders (’n jong voorleesgehoor) dadelik by die verhaal betrek. Kleuters sal hulle aan die kant van die kind en Jakkals skaar en die verhaal enduit, en waarskynlik herhaaldelik, wil hoor om by die oplossing en gelukkige einde te kom.

Ten spyte van Jakkals se bekommernis, slaag die skrywer daarin om met humor en kreatiewe taalgebruik die verhaal lig en positief te hou. Humor stimuleer kreatiwiteit en waar baie boeke deesdae opvoedkundige of morele boodskappe oordra, is Die hond met die stert sonder swaai ’n lekker storie met baie geleenthede vir prettige interaksie tussen voorleser en kind om aangename boek- en leesherinneringe te skep. Alle lesers het ’n paar boeke uit hulle vroeë kinderjare wat kosbare herinneringe oproep. Prenteboeke kan lewenslange boekliefhebbers skep.

Boy

A true story of love, loss, survival and finding your voice.

Before the roads. Before the raves. Before the reputation. Before the man.

There was just the boy. A black child raised in a white seaside town, searching for somewhere-anywhere-to belong.

This is a journey through the silence, the secrets, and the scars.

From fishing trips and foster care to carnival, sound systems, fistfights, and murders, Boy is a raw, unforgettable memoir of identity, abandonment, and the power of being seen.

Told with brutal honesty, unexpected humour, and deep reflection, this is more than a story about growing up - it's about rising up. A reflective therapy for me, the writer and an invitation for you, the reader, to walk every step of the journey with me.

It's about finding light where there was none, and a voice where there was silence.

Some memories leave bruises while some build armour. Some do both.

If I'd known I'd grow up feeling like I had no identity...

Abused by those I loved...

Witnessing death first-hand...

Thinking I was the only Black kid in the world...

Feeling like I didn't belong - anywhere...

You know what? I wouldn't change a damn thing.

Because all of it made me who I am today.

When you find the boy.... you will discover the man!

Fredi